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| Titanites occidentalis, Fernie Ammonite |
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| Fernie, British Columbia, Canada |
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| Titanites occidentalis, Fernie Ammonite |
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| Fernie, British Columbia, Canada |
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| Dolphin Fossil Vertebrae |
Today, the North Sea is shallow, busy, and heavily worked by trawlers, dredges, and offshore infrastructure. Beneath that modern churn lies a remarkable archive of Cenozoic life, quietly releasing its fossils when nets and dredges scrape sediments that have not seen daylight for millions of years.
Fossil cetacean bones—vertebrae, ribs, mandibles, and the occasional ear bone—are among the most evocative finds recovered from the seafloor.
Dolphin vertebrae are especially common compared to skulls, as their dense, spool-shaped centra survive transport and burial better than more delicate skeletal elements.
These fossils are typically dark brown to black, stained by long exposure to iron-rich sediments and phosphates, and often bear the polished surfaces and rounded edges that speak to a history of reworking by currents before final burial.
The North Sea is famous for yielding a mixed assemblage of fossils spanning multiple ice ages and interglacial periods, but many marine mammal remains originate from Miocene deposits, roughly 23 to 5 million years old. During the Miocene, this region was not the marginal, shallow sea we know today. It formed part of a broad, warm to temperate epicontinental sea connected to the Atlantic, rich in plankton, fish, sharks, and early whales and dolphins.
This was a critical chapter in cetacean evolution, when modern groups of toothed whales, including early delphinids and their close relatives, were diversifying and refining the echolocation-based hunting strategies that define dolphins today.
Most North Sea cetacean fossils are found accidentally rather than through targeted excavation. Commercial fishing trawls, aggregate dredging for sand and gravel, and construction linked to wind farms and pipelines routinely disturb Miocene and Pliocene sediments.
Fossils are hauled up tangled in nets or mixed with shell hash and glacial debris, often far from their original point of burial. As a result, precise stratigraphic context is usually lost, and age estimates rely on sediment still adhering to the bone, associated microfossils, or comparison with well-dated onshore Miocene marine deposits in the Netherlands, Belgium, Germany, and eastern England.
A dolphin vertebra from this setting tells a story of both life and loss. In life, it was part of a flexible, powerful spine built for speed and agility, driving rapid tail beats through warm Miocene waters.
After death, the carcass likely sank to the seafloor, where scavengers stripped it and currents scattered the bones. Over time, burial in sand and silt allowed mineral-rich waters to replace organic material with stone, locking the bone into the geological record.
Much later, Ice Age glaciers reshaped the seafloor, reworking older sediments and concentrating fossils into lag deposits that modern dredges now disturb.
Though often found in isolation, these vertebrae are scientifically valuable. They confirm the long presence of dolphins in northern European seas and help refine our understanding of Miocene marine ecosystems, biogeography, and climate.
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| Mixosaurus sp. from Middle Triassic Seas |
This extinct marine reptile cruised the Middle Triassic seas around 242–235 million years ago, back when the world’s continents were still shuffling seats and experimenting with new ocean ecosystems.
The Taiwan specimen of Mixosaurus sp. on display at the Natural History Branch of the National Taiwan Museum captures that transitional vibe perfectly. It is a very, very purdy specimen!
With an elongated snout, well-developed fins, and a body still figuring out hydrodynamic fashion, Mixosaurus sits smack in the ichthyosaur family tree between early, lizard-shaped forms and the more streamlined torpedo models that would show up in the Jurassic.
Think of it as the “adolescent ichthyosaur phase,” complete with growth spurts and evolving lifestyles.
Taxonomically, Mixosaurus belongs to the order Ichthyosauria and is commonly grouped within Mixosauridae. Its relatives include the earlier Utatsusaurus and Grippia (more on the reptilian side of things) and later speed demons like Temnodontosaurus and Stenopterygius.
While all ichthyosaurs shared adaptations for marine life — big eyes, paddle limbs, and that delightful habit of birthing live young — Mixosaurus kept a few primitive traits, making it a favorite for paleontologists trying to reconstruct evolutionary pathways in Triassic oceans.
As for its museum home: the National Taiwan Museum has a long pedigree. Founded in 1908 during the Japanese era, it’s the oldest museum in Taiwan and houses natural history, anthropology, geology, and zoology collections spanning deep time to present day.
The Natural History Branch, nestled in a dedicated exhibition space, is where geology, paleontology, and biology truly shine — a quiet refuge where extinct reptiles like Mixosaurus can enjoy their retirement in glass cases while humans politely stare, point, and whisper variants of “whoa.”
If you’re lucky enough to visit, you’ll find Mixosaurus presented not as some dusty relic of a bygone sea, but as a charismatic stepping-stone in reptile evolution — a reminder that even in the Triassic, life was busy experimenting.
And occasionally, those experiments worked so well they became crowd-pleasers 240 million years later.
The National Taiwan Museum is in Taipei, Taiwan, right in the city’s historic downtown. The main building sits along Xiànběi Road (Xiànběi Rd., Zhongzheng District) facing 228 Peace Memorial Park, making it easy to combine extinct reptiles with a lovely urban stroll.
The Natural History Branch — where the Mixosaurus hangs out — is part of the same museum system and also located in central Taipei. It focuses on geology, biology, and deep time, so it’s very fossil-friendly territory.
If you’re ever in Taipei (or plotting a paleontology-tour itinerary — which, honestly, is something you should do), it’s a fun stop: compact, historic, and just nerdy enough to make Triassic ichthyosaurs feel right at home.
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| Nessie the Opalized Marine Reptile |
Beneath its shimmering surface lies the story of a powerful marine reptile that ruled the Early Cretaceous oceans roughly 110 million years ago, at a time when much of inland Australia was drowned beneath a warm, shallow epicontinental sea.
The lovely remains you see here are from one of those amazing marine reptiles, a pliosaur, who swam in those ancient seas. So what exactly is a pliosaur?
Pliosaurs are a subgroup within the Plesiosauria, the great marine reptiles (not dinosaurs!) of the Mesozoic.
While long-necked plesiosaurs favored dainty heads and elongated cervical vertebrae for sweeping, panoramic strikes at small fish and cephalopods, pliosaurs evolved in the opposite direction:
These were the ambush predators, built less like swans and more like crocodilian torpedoes, with four powerful flippers and a muscular body plan that let them sprint through the water column to surprise prey.
Though not an ichthyosaur — those fast, fish-shaped reptiles that converged spectacularly toward the form of modern dolphins — pliosaurs shared the same ecosystems.
Ichthyosaurs hunted squid and fish in speed-based chases, while pliosaurs handled bigger, tougher fare: other marine reptiles, ammonites, and the occasional large fish unlucky enough to cross their path.
The Early Cretaceous seas hosted a diverse guild of reptiles:
Nessie sits among a lineage that includes broad-skulled bruisers like Kronosaurus queenslandicus, a fellow Australian celebrity whose skull approached 3 meters in length and whose bite force was probably among the strongest of any Mesozoic reptile.
Pliosaurs didn’t so much swim as fly underwater. Their four hydrofoil flippers generated lift in alternating strokes, allowing bursts of speed followed by graceful pursuit. Streamlined bodies meant low drag, essential for surprise attacks in open water.
Dentition tells the tale:
Ammonites — including opalized forms from the same Australian basins — bear puncture marks suggestive of pliosaur predation. Large fish and other marine reptiles likely rounded out the menu.
Like ichthyosaurs and most plesiosaurs studied from articulated skeletons, pliosaurs were viviparous — they gave birth to live young at sea. No nests, no frantic beach crawls, and no hatchling gauntlet. Babies were miniature versions of adults, already hydrodynamic and hungry.
How do we know this? Well, a few ways. We have fossilized pregnant plesiosaur specimens with embryos and there is always the biomechanical absurdity of hauling such a creature onto land to lay eggs. So, wee ones at sea it is!
Why Opal? Why Here?
Opalization is an Australian specialty, the result of silica-rich groundwater percolating through Cretaceous sediments and replacing bone over geologic time. Fossils from Lightning Ridge and Coober Pedy preserve everything from ammonites to plesiosaurs as shockingly colourful silica pseudomorphs — Earth chemistry as jeweler.
Nessie’s preservation is thus a double marvel for its biological rarity (pliosaur skeletons are uncommon) and mineralogical rarity (precious opal replacement is even rarer)
Pliosaurs survived well into the Late Cretaceous before vanishing in a wave of marine turnover alongside ichthyosaurs, mosasaurs, and ammonites. Their departure marks a reshuffling of oceanic power dynamics — a story of climate, sea levels, and evolutionary competition.
Toxodon was a hulking, hippo-sized grazing mammal that once roamed the ancient grasslands, wetlands, and scrub of South America.
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| Irish Elk, Megaloceros giganteus |
The tall grass parts in slow ripples, stirred by a warm evening breeze—then by something far larger. An Irish Elk steps into view, a towering ghost from deep time, its silhouette edged with gold.
This magnificent deer—Megaloceros giganteus—was not, in fact, strictly Irish, nor truly an elk.
It was a giant among cervids, a member of a lineage that roamed from Ireland to Siberia across vast Ice Age steppes. But Ireland’s bogs preserved their remains so exquisitely that the name stuck, and so did the awe.
Irish Elk fossils appear in abundance in the peatlands of Ireland, the loess plains of Eastern Europe, and far into Central Asia. Their lineage traces back to the genus Megaloceros, a group of large deer that emerged around two million years ago.
What made M. giganteus the superstar of its clan? Two words: monumental antlers.
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| Irish Elk, Muséum National d'Histoire Naturelle, Paris |
When these massive antlers were unearthed centuries ago, early naturalists were convinced they belonged to mythical beasts or antediluvian monsters.
The truth turned out to be even better: a deer so grand it nearly defied imagination.
Despite their size and majesty, Irish Elk were true deer, closely related to fallow deer and part of an ancient and diverse cervid family. Their bodies were robust, their legs strong and built for open ground, where visibility mattered and where their spectacular antlers could be displayed in their full glory.
But evolution is a dance with the environment, and as the Pleistocene climate fluctuated, the lush grasslands they depended on began to shrink. Their decline wasn’t sudden but drawn out, a slow waltz toward extinction.
The last of these giants fell only a short time ago. We do not know the exact date but the fossils share their stories as more and more are found. The youngest known fossils come from Siberia and date to about 7,700 years ago—well after most Ice Age megafauna had disappeared.
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| Irish Elk, Natural History Museum London |
A giant deer with enormous antlers was increasingly out of place in a world thick with trees and rife with hunters.
Climate change, habitat loss, and possibly selective hunting all nudged the Irish Elk toward its final chapter.
They are one of these species that have been talked about as contenders for using DNA to bring them back.
Today the Irish Elk lives on in museum halls, in bog-darkened bones, and in our imaginations—a giant stepping through grass, pausing on a Pleistocene hillside as if it might turn its head toward us at any moment. There are several Irish Elk in collections and on display at museums around the world where you can view them at your leisure.
A particularly impressive specimen is on view at the Muséum National d'Histoire Naturelle, Paris. The museum is a personal favourite of mine and worthy of a visit for its rich history and marvelous fossils, including the Irish Elk you see in the photo above. There are also wonderful examples in the British Museum in London, also worthy of a visit.
The sheer grandeur of their size is sure to impress you! These beauties are a reminder that the world once held creatures both familiar and impossibly grand.
Illustration Credit: The lead image above was created by the supremely talented Daniel Eskridge, Paleo Illustrator from Atlanta, Georgia, USA. I share it here with permission as I have licensed the use of many of his images over the years, including this one.
To enjoy his works (and purchase them!) to adorn your walls, visit his website at www.danieleskridge.com
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| Orygmaspis (Parabolinoides) contracta with gut structure |
And what is most exciting about this specimen is that there is clear preservation of some of the gut structures preserving this trilobite's last meal.
Documentation of non- or weakly biomineralizing animals that lived during the Furongian is essential for a comprehensive understanding of the diversification of metazoans during the early Palaeozoic.
Biomineralization, biologically controlled mineralization, occurs when crystal morphology, growth, composition, and location is completely controlled by the cellular processes of a specific organism. Examples include the shells of invertebrates, such as molluscs and brachiopods. The soft bits of those same animals tend to rot or be scavenged long before mineralization or fossilization can occur — hence, we find less of them.
So, not surprisingly, the fossil record of soft-bodied metazoans is particularly scarce for this critical time interval. To date, the fossils we do have are relatively rare and scattered at a dozen or so localities worldwide.
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| Location and stratigraphy of the Fossil Locality |
This specimen was found in Upper Cambrian exposures in the Clay Creek section at the top of the left fork of the ravine below Tanglefoot Mountain, 20 km northeast of Fort Steele.
It was the keen eyes of Chris Jenkins who noticed the interesting structures worthy of exploration.
Lerosey-Aubril along with colleagues, Patterson, Gibb and Chatterton, published a great study on this trilobite in Gondwana Research, February 2017.
Their work looked at this new occurrence of exceptional preservation in Furongian (Jiangshanian) strata of the McKay Group near Cranbrook, British Columbia, Canada. Their study followed up on the work of Chatterton et al. studying trilobites with phosphatised guts in this same 10-m-thick interval.
Lerosey-Aubril et al.'s paper looked at two stratigraphically higher horizons with soft-tissue preservation. One yielded a ctenophore and an aglaspidid arthropod, the other a trilobite with a phosphatised gut belonging to a different species than the previously described specimens.
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| Undetermined ctenophore |
The aglaspidid belongs to a new species of Glypharthrus, and is atypical in having twelve trunk tergites and an anteriorly narrow ‘tailspine’. These features suggest that the tailspine of aglaspidids evolved from the fusion of a twelfth trunk segment with the telson.
They also confirm the vicissicaudatan affinities of these extinct arthropods. Compositional analyses suggest that aglaspidid cuticle was essentially organic with a thin biomineralised (apatite) outer layer.
Macro imagery of the trilobite reveals previously unknown gut features — medial fusion of digestive glands — possibly related to enhanced capabilities for digestion, storage, or the assimilation of food.
These new fossils show that conditions conducive to soft-tissue preservation repeatedly developed in the outer shelf environment represented by the Furongian strata near Cranbrook. Future exploration of the c. 600-m-thick, mudstone-dominated upper part of the section is ongoing by Chris New, Chris Jenkins and Don Askey. There work and collaboration will likely result in more continued discoveries of exceptional fossils.
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| Glypharthrus magnoculus sp. |
Photo One: Orygmaspis (Parabolinoides) contracta (Trilobita) from the Jiangshanian (Furongian) part of the McKay Group, Clay Creek section, near Cranbrook, British Columbia, Canada. A–D, specimen RBCM.EH2016.031.0001.001, complete dorsal exoskeleton preserved dorsum-down and showing ventral features, such as the in situ hypostome and phosphatised digestive structures.
A, general view, specimen immersed under ethanol; B, detail of the digestive structures, specimen under ethanol; C, same as B, electron micrograph; D, same as B and C, interpretative drawing with digestive tract in blue-purple and digestive glands in pink.
Abbreviations: Dc 1 and 2, cephalic digestive glands 1 and 2, Dt1 and 5, thoracic digestive glands 1 and 5, hyp, hypostome, L2, glabellar lobe 2, LO, occipital lobe, T1 and 5, thoracic segments 1 and 5. Scale bars represent 2 mm (A) and 1 mm (B–D). For interpretation of the references to the colours in this figure legend, you'll want to read the full article in the link below.
Photo Two: Undetermined ctenophore from the Jiangshanian (Furongian) part of the McKay Group, Clay Creek section, near Cranbrook, British Columbia, Canada. A, B, specimen UA 14333, flattened body fragment with oral-aboral axis oriented parallel to bedding; specimen photographed immersed under dilute ethanol with presumed oral region facing to the bottom. A, general view. B, detailed view showing comb rows and ctene. Scale bars represent 1 cm (A) and 5 mm (B). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
Photo Three: Glypharthrus magnoculus sp. nov. from the Jiangshanian (Furongian) part of the McKay Group, Clay Creek section, near Cranbrook, British Columbia, Canada. A–H, holotype, UA 14332, almost complete dorsal exoskeleton; photographs (A–C) and electron micrographs (D, backscattered; E–H, secondary) of the specimen in dorsal view with anterior facing to the top. A, B, general view in normal (A) and inverted (B) colours; C, D, detail of posterior trunk region, showing T12 and its contacts with T11 and the spiniform telson (arrows); the core of the fossil is made of a clay mineral and was initially entirely covered by an apatitic thin layer (white areas on D); E, left eye; F, right posterolateral glabellar lobe; G, rounded tubercles on right posterior border of cephalon; H, triangular tubercles pointing backwards (bottom right corner) on trunk axial region. Scale bars represent 5 mm (A, B), 1 mm (C, D), 500 μm (E, F), and 100 μm (G, H).
Link to the paper: https://www.researchgate.net/publication/309549546_Exceptionally-preserved_late_Cambrian_fossils_from_the_McKay_Group_British_Columbia_Canada_and_the_evolution_of_tagmosis_in_aglaspidid_arthropods
But then you notice the delicious hints: a spiral ghosting through the surface, a faint rib, a seam where time is ready to split wide open—it's magic!
Ammonites, long extinct cephalopods, so often appear this way because, shortly after death, their shells became chemical centres of attraction on the seafloor.
As the soft tissues decayed, they altered the surrounding sediment, triggering minerals—often calcium carbonate or iron-rich compounds—to precipitate rapidly around the shell.
This early cementation formed a concretion, a protective stone cocoon that hardened long before the surrounding mud was compressed into rock. While everything around it flattened, cracked, and distorted under pressure, the ammonite inside remained cradled and whole.
What you see here is a gathering of these time capsules: a cluster of ammonites preserved in their concretions, each one split or weathered just enough to reveal the coiled story within.
Some are neatly halved, spirals laid bare like fingerprints from ages past; others are only just beginning to show themselves, teasing their presence beneath rough stone skins.
Together, they tell a familiar fossil-hunter’s tale—of patience, sharp eyes, and the quiet thrill of knowing that a simple rock can hold an ancient ocean inside.
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| Bryce Canyon National Park |
The hoodoos rise by the tens of thousands, slender spires and stacked pinnacles arranged in amphitheatres that curve like giant bowls scooped from the Paunsaugunt Plateau.
Seen from the air, their geometry becomes mesmerizing: rows and clusters, corridors and cul-de-sacs, each column subtly different, each telling its own long, patient story.
These improbable forms are the product of relentless, delicate violence. Bryce’s hoodoos are sculpted from the Claron Formation, a sequence of sedimentary rocks laid down between about 50 and 35 million years ago, when this high plateau was a landscape of lakes, rivers, and floodplains.
Limestone, mudstone, and siltstone stacked layer upon layer, later lifted skyward as the Colorado Plateau rose. What followed was not a single dramatic event, but millions of freeze–thaw cycles—water seeping into cracks by day, freezing and expanding by night—paired with rain, snowmelt, and gravity’s quiet insistence.
From the aerial view, colour tells the chemistry of the stone. Iron oxides stain the hoodoos in fiery reds and oranges, while manganese adds purples and lavenders that deepen as shadows lengthen.
Pale caps of harder rock perch atop many spires like improbable hats, protecting the softer stone beneath and allowing the columns to stand long enough to earn their fantastical shapes. Where caps fall, hoodoos soon follow—proof that this is a living, changing landscape, not a static monument.
Light is the final sculptor. At sunrise, the amphitheatres ignite, each spire rimmed with gold. By midday, the forms sharpen and flatten, revealing the intricate fluting etched into their sides.
As evening approaches, shadows flood the basins, pooling between the towers until the hoodoos seem to float, suspended in a sea of dusk. From above, those shadows trace the park’s hidden architecture, mapping the slow choreography of erosion.
Belonging to a group of extinct bony fishes remarkable for their enamel-coated, diamond-shaped ganoid scales, Albertonia offers a rare and intimate glimpse into life shortly after the end-Permian mass extinction, when marine ecosystems were slowly rebuilding themselves.
Specimens of Albertonia have been discovered in two significant rock units: the Sulphur Mountain Formation near Wapiti Lake in British Columbia and the Lower Triassic Montney Formation of Alberta.
These formations preserve an extraordinary record of Early Triassic marine life—ecosystems shaped by fluctuating sea levels, restricted basins, and the evolutionary experimentation that followed Earth’s most profound biological crisis.
The Sulphur Mountain Formation, in particular, is renowned for its exceptional vertebrate fossils, including fishes, marine reptiles, and rare soft-tissue impressions. Within these beds, Albertonia appears as a slender, streamlined fish with surprisingly tall dorsal and anal fins—features that give it that distinctive “sail-like” profile. These fins likely played a role in stabilization and maneuverability, allowing it to dart through the shallow carbonate-siliciclastic seas with speed and precision.
Ganoid fishes like Albertonia are characterized by their thick, lustrous scales, locking together like a natural chainmail. These scales not only protected the fish from predators but also provide paleontologists with exquisite fossil details. In well-preserved specimens, you can sometimes see the subtle ornamentation—ridges, pits, and patterns—etched into the ganoine coating, each reflecting the biology of a world more than 245 million years removed from our own.
Though Albertonia is long extinct, its fossils help illuminate the pivotal evolutionary story that unfolded during the Early Triassic. As life clawed its way back from catastrophe, species like this little ganoid fish were among the pioneers of new ecological niches, their presence a quiet testament to resilience in ancient oceans.
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| The Dream Team at Fossil Site #15, East Kootenays |
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| Chris New, pleased as punch atop Upper Cambrian Exposures |
They’re curious, clever, deeply maternal, occasionally cranky, and—much like your favourite mischievous cousin at a family reunion—always two steps from either a cuddle or a wrestling match.
Bear play looks adorable from afar—soft paws swatting, roly-poly wrestling, mock charges that end in huffing and zoomies—but make no mistake: this is serious business.
For young black bears and grizzlies, play is the curriculum of survival.
Wrestling hones strength and coordination. Chase games build stamina and teach cubs how to gauge speed and momentum in uneven terrain.You will recognize the mouthing and pawing in bears if you have ever watched dogs playfighting. It has that same feel but with a much bigger smack.
Even the classic “stand up and paw slap” routine teaches social cues, dominance negotiation, and how to not get clobbered during adult interactions later on.
Adults play too—usually in the brief windows when food is plentiful, neighbours are tolerable, and no one is watching who might judge them for being goofballs.Scientists have documented adult grizzlies sliding down snow patches on their backs and black bears engaging in curious-object play, poking logs, tossing salmon carcasses, and investigating anything that smells even remotely like an adventure.
Interactions between bears are a delicate dance of dominance, tolerance, and opportunism.
Adult females tend to keep to themselves, especially when raising cubs, while males roam wider territories and have higher tolerance thresholds—at least until another big male wanders too close to a prime feeding spot.
During salmon runs, though, everything changes. Suddenly you’ll see a whole cast of characters congregate along rivers: veteran matriarchs who fish with surgical precision, rowdy subadults who think stealth means “splash loudly until the fish give up,” and massive males who square off in dominance displays worthy of a heavyweight title card.
Most conflicts end with bluff charges, raised hackles, and guttural woofs, but real fights—when they happen—are fast, violent, and rarely forgotten by the loser.
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| Maternal Tenderness: Mamma & Cub |
Cubs are born in winter dens, impossibly tiny—around 300 to 500 grams—and almost hairless, little squeaking marshmallows who depend entirely on their mother’s warmth and fat reserves.
Over the next 18–30 months, a mother teaches her young everything: which plants won’t poison you, how to find grubs by the sound of a rotting stump, how to climb fast when trouble arrives, and how to read the moods of other bears.
Her tenderness is matched only by her ferocity. A mother bear defending cubs is one of the most formidable forces in the forest, and even adult males—three times her size—think twice before pushing their luck.
Where Bears Appear in the Fossil Record
Bears are relative newcomers in deep time, with the earliest ursoids emerging in the late Eocene, around 38 million years ago. True bears (family Ursidae) appear in the early Miocene, and by the Pliocene and Pleistocene, the Pacific Northwest was home to a rich lineup of ursids, including the mighty Arctodus simus, the short-faced bear—one of the largest terrestrial carnivores to ever live in North America.
Black bears show up in the fossil record around the mid-Pleistocene, with fossils found in caves and river-cut sediments from British Columbia down to California. Grizzly bears, originally a Eurasian species, crossed the Bering land bridge during the Pleistocene, leaving their remains in Late Pleistocene deposits from Alaska through western Canada.
Today, the Pacific Northwest remains a stronghold for bears:
Black bears are the most numerous, with an estimated 25,000–35,000 individuals in British Columbia alone, and healthy populations throughout Washington, Oregon, and Idaho. They’re adaptable, omnivorous, and just clever enough to defeat most human attempts at bear-proofing.
Grizzly bears (coastal and interior populations) are far fewer. British Columbia hosts an estimated 13,000–15,000, though distribution varies greatly.
Coastal bears—brown bear or spirit bears—are more numerous and enjoy a salmon-rich in diet, while interior grizzlies face more fragmented landscapes and higher conflict pressures. In the Lower 48, grizzlies number around 2,000, clustered mainly in the Greater Yellowstone and Northern Continental Divide ecosystems.
Conservation efforts, especially Indigenous-led stewardship across the Great Bear Rainforest and interior plateaus, continue to shape recovery, resilience, and coexistence strategies for both species.
Though we often see them today basking on beaches or popping their heads above the waves, their journey through the fossil record reveals a dramatic tale of land-to-sea adaptation and ancient global wanderings.
Seals belong to a group of marine mammals called pinnipeds, which also includes sea lions and walruses.
All pinnipeds share a common ancestry with terrestrial carnivores, and their closest living relatives today are bears and mustelids (like otters and weasels).
While it may seem unlikely, their ancestors walked on land before evolving to thrive in marine environments. It takes many adaptations for life at sea and these lovelies have adapted well.
The fossil record suggests that pinnipeds first emerged during the Oligocene, around 33 to 23 million years ago.
These early proto-seals likely lived along coastal environments, where they gradually adapted to life in the water. Over time, their limbs transformed into flippers, their bodies streamlined, and their reliance on the sea for food and movement became complete.
In Kwak'wala, the language of the Kwakwaka'wakw First Nations of the Pacific Northwest, seals are known as migwat, and fur seals are referred to as xa'wa.
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| Voay robustus |
Here, until a few thousand years ago, lived Voay robustus, the so-called “horned crocodile.”
Imagine your average Nile crocodile, Crocodylus niloticus, then give it a set of knobby horns just above the eyes, a chunkier skull, and a personality that can best be described as “aggressively misunderstood.”
Voay robustus was no dainty island reptile. This was a serious piece of croc engineering—up to 5 metres long and built like it had something to prove. Its very name says it all: “Voay” (from the Malagasy word for crocodile) and “robustus,” because apparently scientists looked at it and thought, “yes, that’s the robust one.”
The first thing to know about Voay is that it was one of the last survivors of Madagascar’s lost megafauna. While lemurs were still the size of gorillas and elephant birds stomped through the underbrush like feathered tanks, Voay robustus lurked in rivers and swamps, waiting patiently for something—anything—to make a poor life choice near the water’s edge.
For decades, Voay was a bit of a taxonomic mystery. When first described in the 19th century, some thought it might be a close cousin of the Nile crocodile, others insisted it was something entirely different. Scientists bickered, skulls were compared, and Latin names were flung around like darts at a pub quiz.
Then, in 2021, the DNA finally weighed in. Using ancient genetic material from subfossil skulls, researchers revealed that Voay robustus wasn’t a Nile crocodile at all—it was actually the closest known relative of the modern Crocodylus lineage, having split off around 25 million years ago. That makes it something like the evolutionary cousin who shows up at family reunions wearing leather, talking about their motorcycle, and asking everyone if they’ve “still gone soft.”
The Horned Enigma — The most distinctive feature of Voay robustus was its skull—particularly those raised, bony “horns” above its eyes. They weren’t true horns, of course, but enlarged ridges of bone, possibly used for species recognition, intimidation, or just looking fabulous. If you’ve ever seen a crocodile and thought, “You know what that needs? More attitude,” Voay had you covered.
Palaeontologists still debate whether those horns meant Voay was more territorial, more aggressive, or simply had a flair for drama. In any case, it must have been a striking sight.
Picture it: the sun setting over a Malagasy river, the water rippling slightly as a pair of horned eyes rise from below. Birds go silent. A lemur freezes. Somewhere, a herpetologist gets very, very excited.
Madagascar is known for being a biological experiment that got out of hand. Cut off from Africa for around 160 million years, the island evolved its own cast of peculiar creatures: giant lemurs, pygmy hippos, and flightless birds the size of small Volkswagens. Into this mix slithered and splashed Voay robustus, likely arriving during a period of low sea levels that made crossings from the mainland possible.
Once there, Voay probably established itself at the top of the food chain—and stayed there. Anything coming down to drink was fair game. Lemur, bird, hippo, or careless human ancestor—Voay didn’t discriminate. It’s hard to imagine anything else on the island telling a 5-metre crocodile what it could or couldn’t eat.
And yet, despite being a literal apex predator, Voay robustus didn’t make it to the present day. The species vanished roughly 1,200 years ago, right around the time humans arrived in Madagascar. Coincidence? Probably not.
When Humans Moved In — The timeline tells a familiar story. People reach the island about 2,000 years ago. Within a millennium, the megafauna are gone. The giant lemurs disappear, the elephant birds vanish, and the horned crocodile—perhaps hunted, perhaps losing habitat—slips into extinction.
You might imagine that Voay robustus was at least a little resentful about this turn of events. After all, it had survived millions of years of climate swings, sea-level changes, and evolutionary curveballs. And then along came humans, with their spears, boats, and general knack for ecological chaos.
It’s even been suggested that early Malagasy legends of giant crocodiles or river spirits might echo distant memories of encounters with Voay. Which, frankly, would make sense. If a horned, five-metre reptile lunged at your canoe one evening, you’d probably tell stories about it for generations, too.
Genetically, Voay robustus offers a fascinating window into crocodile evolution. While modern Crocodylus species are found across Africa, Asia, the Americas, and Australia, Voay sat just outside that global radiation. In other words, it was part of the evolutionary stem group that gave rise to today’s true crocodiles—but it stayed put while its cousins spread out and diversified.
That makes Voay something of a living fossil that outstayed its welcome—Madagascar’s own reminder of an older, meaner age. Its extinction left the island without any native crocodiles, though Nile crocodiles have since colonised parts of the west coast, re-establishing the ancient reptilian grin on Malagasy soil.
Today, Voay robustus lives on in subfossil bones, DNA samples, and the collective imagination of herpetologists who still dream of rediscovering one lurking somewhere in a forgotten swamp. (They won’t, of course—but it’s nice to dream.)
If anything, Voay reminds us that evolution loves a good experiment, especially on islands. Give a crocodile a few million years in isolation, and it might just decide it wants horns.
And if there’s a moral here—besides “don’t go swimming in prehistoric Madagascar”—it’s that even the fiercest, most robust of creatures can vanish when the world around them changes. So here’s to Voay robustus: horned, hulking, and gone too soon.
Image credit: By LiterallyMiguel - Own work, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=163874814
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| Lingula anatina — Primitive Brachiopod |
Photo: Wilson44691 - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=8624418
Close your eyes and travel with me through ancient oceans teeming with early life, lush primeval forests echoing with strange calls, and sunbaked badlands where the bones of giants rest beneath your feet.
Each episode is a journey into Earth’s secret past, where every fossil tells a story and every stone remembers.
Together, we’ll wander across extraordinary fossil beds, sacred landscapes, and timeworn shores that have witnessed the rise and fall of worlds.
From tiny single-celled pioneers to mighty dinosaurs, from cataclysms to new dawns, this is where science meets storytelling—and where the past comes vividly alive.
So wherever you are—on the trail, by the sea, or cozy at home—bring your curiosity and join me in the great adventure of discovery. Favourite the show and come fossil-hunting through time with me!
Listen now: Fossil Huntress Podcast on Spotify: https://open.spotify.com/show/1hH1wpDFFIlYC9ZW5uTYVL
Much like (slow) Water Striders (Aquarius remigis), (relatively sluggish) Coelacanth (Latimeria chalumnae) and (the current winner on really slow evolution) Elephant Sharks (Callorhinchus milii), these fellows have a long history in the fossil record with very few anatomical changes.
But slow change provides loads of great information. It makes our new friend, Yunnanolimulus luoingensis, an especially interesting and excellent reference point for how this group evolved.
We can examine their genome today and make comparisons all the way back to the Middle Triassic (with this new find) and other specimens from further back in the Ordovician — 445 million years ago.
These living fossils have survived all five mass extinction events. They are generalists who can live in shallow or deep water and will eat pretty much anything they can find on the seafloor.
The oldest horseshoe crab fossil, Lunataspis aurora, is found in outcrops in Manitoba, Canada. Charmingly, the name means crescent moon shield of the dawn. It was palaeontologist Dave Rudkin and team who chose that romantic name. Finding them as fossils is quite remarkable as their shells are made of protein which does not mineralized like typical fossils.
Even so, the evolution of their exoskeleton is well-documented by fossils, but appendage and soft-tissue preservation are extremely rare.
A new study analyzes details of the appendage and soft-tissue preservation in Yunnanolimulus luoingensis, a Middle Triassic (ca. 244 million years old) horseshoe crab from Yunnan Province, SW China. The remarkable anatomical preservation includes the chelicerae, five pairs of walking appendages, opisthosomal appendages with book gills, muscles, and fine setae permits comparison with extant horseshoe crabs.
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The occurrence of Carcinoscorpius-type claspers on the first and second walking legs in male individuals of Y. luoingensis tells us that simple chelate claspers in males are plesiomorphic for horseshoe crabs, and the bulbous claspers in Tachypleus and Limulus are derived.
As an aside, if you hadn't seen an elephant shark before and were shown a photo, you would likely say, "that's no freaking shark." You would be wrong, of course, but it would be a very clever observation.
Callorhinchus milii look nothing like our Great White friends and they are not true sharks at all. Rather, they are ghost sharks that belong to the subclass Holocephali (chimaera), a group lovingly known as ratfish. They diverged from the shark lineage about 400 million years ago.
If you have a moment, do a search for Callorhinchus milii. The odd-looking fellow with the ironic name, kallos, which means beautiful in Greek, sports black blotches on a pale silver elongate body. And their special feature? It is the fishy equivalent of business in the front, party in the back, with a dangling trunk-like projection at the tip of their snout and well-developed rectal glands near the tail.
As another small point of interest with regards to horseshoe crabs, John McAllister collected several of these while working on his MSc to see if they had microstructures similar to trilobites (they do) and whether their cuticles were likewise calcified. He found no real calcification in their cuticles, in fact, he had a rather frustrating time getting anything measurable to dissolve in acid in his hunt for trace elements.
Likewise, when looking at oxygen isotopes (16/18) to get a handle on water salinity and temperature, his contacts at the University of Waterloo had tons of fun getting anything at all to analyze. It made for some interesting findings. Sadly, for a number of reasons, he abandoned the work, but you can read his very interesting thesis here: https://dr.library.brocku.ca/handle/10464/1959
Ref: Hu, Shixue & Zhang, Qiyue & Feldmann, Rodney & Benton, Michael & Schweitzer, Carrie & Huang, Jinyuan & Wen, Wen & Zhou, Changyong & Xie, Tao & Lü, Tao & Hong, Shuigen. (2017). Exceptional appendage and soft-tissue preservation in a Middle Triassic horseshoe crab from SW China. Scientific Reports. 7. 10.1038/s41598-017-13319-x.
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| European Flamingo |
Their long, reed-thin legs stitch delicate ripples through the shallows, while their downcurved bills — precision tools of evolutionary engineering — sift brine shrimp and algae with gentle, rhythmic sweeps.
But Phoenicopterus roseus, the European flamingo, is more than a creature of luminous wetlands.
It is the living remnant of a lineage forged in deep time, a story that stretches back more than 30 million years into a world utterly transformed.
For decades, flamingos stood as an evolutionary puzzle — strange in form, stranger still in habit. Their closest relatives were unclear. Then the fossil record began offering clues.
The earliest birds recognizable as flamingo ancestors appear in the Late Eocene to Early Oligocene, a period when the world was cooling and vast salt lakes spread across what is now Europe and North America.
The star of this ancient cast is Palaelodus, a long-legged wader known from deposits in France, Germany, and even North America. Often described as an “unfinished flamingo,” Palaelodus stood tall on slender legs but lacked the extreme bill curvature of modern species.
Paleontologists see it as a sister lineage — a bird halfway between the ancestral stock and the unmistakable modern flamingo form.
Their environments tell the same tale: shallow, alkaline waters rich with diatoms, crustaceans, and blue-green algae. The perfect proving ground for a future flamingo.
By the Miocene, true flamingos had fully arrived. Fossil flamingos — many nearly indistinguishable from modern species — appear in the lakebeds of Spain, Italy, Hungary, and Greece.
Some highlights of Europe’s deep flamingo past include:
Abundant trackways in Miocene lakebeds of Spain, showing flocks wading and foraging as they do today
What’s striking is how little the flamingo body plan has changed. Once their ecological niche crystallized — the brackish shallows, the sieving bill, the social flocking behaviour — evolution held its breath. Flamingos became masters of a lifestyle so successful it needed no further remodeling.
Until recently, the flamingo’s closest living relatives were uncertain. For years, hypotheses bounced between storks, herons, waders, and even waterfowl. Then genetics reshaped the field.
Flamingos are now grouped with grebes in a clade called Mirandornithes.
It’s a pairing that initially seems improbable — one bird is a pink desert ballerina, the other a compact diver of northern lakes. Yet the fossil record supports it: early grebe-like birds and Palaelodus share key skeletal traits, hinting at a common aquatic ancestor before their lineages diverged.
Today the European flamingo thrives in the wetlands of:
Their pink colour, borrowed from carotenoid pigments in their prey, is a living reminder of their deep bond with saline waters. Their massive colonial nests, sculpted from mud into miniature towers, echo the behaviour of flamingos preserved in Miocene fossil beds.
Each bird, elegant and improbable, embodies a lineage honed by climate shifts, vanished lakes, and ancient ancestors who once stepped cautiously through Europe’s long-lost wetlands.
From the lithified sediments of the Oligocene to the shimmering pink flocks drifting across the Mediterranean today, flamingos stand as one of the great evolutionary constants: birds whose story is etched into stone, water, and sunlight.