THE BIRTHPLACE OF LIFE

For millennia, we've sat at the edge of the world, taking in the impossible magnitude of the ocean.

Her beauty, her storms, such abundance and diversity of life amidst both the tranquillity and unforgiving power that this immensely deep and mostly unexplored frontier hold for us.

Our distant relatives and even those who meditate on these vast pools of blue and green today see the ocean as the birthplace of life. It's the story we tell our children, and they, in turn, tell their children's children. It's a reasonable conclusion. Upwelling currents bring cold, nutrient-rich water from the bottom to the surface. In this primordial soup, vitally important organic and inorganic compounds mix ceaselessly and give us the perfect conditions for photosynthesis, and by all accounts, the basic building blocks of life.

But, rather than the birthplace, I postulate that the ocean is simply the mixing ground for the expansion of life that began elsewhere. It is also possible, as yet we do not know, that these two streams ran in tandem. The delight of science is that we may one day know for sure.

From the oceans, it's just a slow crawl, evolutionarily speaking, from the sea to the terrestrial life we see today. So where to look for the beginnings. That story is a much harsher one. We find microbes of the Domain Archaea, prokaryotic single-celled microorganisms, distinct from bacteria and eukaryotes, living in some of the world's most unlikely and inhospitable places.

Extremely adaptable, Archaea not only survive but thrive in harsh environments, hot, cold, brutally acidic, you name it. But beyond the hot pools and salt lakes, they have also been found in rather pedestrian habitats, in soils, marshlands, and our oceans.

You may be surprised to learn that at this very moment, they are living in your colon, oral cavity, and skin. The methanogens that inhabit our guts have a symbiotic role, helping us with digestion.

Archaea possess genes and several metabolic pathways that allow for transcription and translation. They are able to access more energy sources than their wee microorganism peers, making use of sugars, ammonia, metal ions and hydrogen gas.

The salt-tolerant, Haloarchaea, uses sunlight as an energy source. All reproduce asexually by binary fission, fragmentation or budding and have been doing so for a very long time. Much to our surprise, Archaea have been found making their home in granite more than 3 kilometres beneath the Earth's surface. Well-preserved Archaea microfossils can be found between the quartz sand grains of the oldest known beach on Earth at Strelley Pool, about 1,500 km north of Perth, Australia. They were thriving here over 3.4 billion years ago in an oxygen-free world, metabolizing sulphur-based compounds and giving rise to the life we see today.

But there are also tubelike fossils, stromatolites, possible ancient microbial mats found in 3.77 billion-year-old rocks. Are these the birth of life? The court's still out. Plate tectonics is the Earth's greatest recycling program with only a handful of outcrops older than 3 billion years. Combine that with baking, cooling, subduction and pressure and it makes solving this ancient mystery even more challenging. So, the birthplace of life? So far, the best contender are the wee beasties from the planet's oldest beach.

PLAYING IN THE WAKE

CASTLE PEAK

ENHYDRA LUTRIS INSIDENTE GALEAE

Sea Otter / Enhydra lutris / Vancouver Island

Sea otters are playful, marine mammals with webbed hind feet and water-repelling fur perfectly adapted to the chilly seas in which they live. 

EOCENE PLANT & MAMMAL SITE

Reinforcing the block to safely transport the fossil trackway

MISTY MORNING

TECTONIC SHIFTING: BAJA BC

Some 270 million plus years ago, had one wanted to buy waterfront property in what is now British Columbia, you’d be looking somewhere near Kakwa Provincial Park between Prince George and the Alberta border. 

The rest of the province had yet to arrive but would be made up of over twenty major terranes from around the Pacific. 

The rocks that would eventually become the Cariboo Mountains were far out in the Pacific Ocean, down near the equator.

With tectonic shifting, these rocks drifted north-eastward, riding their continental plate, until they collided with and joined the Cordillera in what is now British Columbia. Continued pressure and volcanic activity helped create the tremendous slopes of the Cariboo Range we see today with repeated bouts of glaciation during the Pleistocene carving their final shape.

FARALLON PLATE

The Farallon Plate took a turn north some 57 million years ago, sweeping much of western coastal Oregon along with it. 

By the middle Oligocene, the Cascadia Subduction Zone was in full force with growing pressure erupting volcanoes along the Western Cascades, a pattern that was to continue well into the Miocene. 

The soft ocean sediments of Oregon contain beautifully preserved gastropods, bivalves and cephalopods.

EXPLORE YOUR CANADA | CANADA 150

HMS Oriole, Salt Spring Island

THE CANADIAN ROCKIES

HAIDA GWAII

EXPLORE YOUR WORLD | FUNGI

AMMONITE DETAIL

PADDLERS PARADISE

BIRTHPLACE OF ANTAEUS

Quintus Sertorius, a Roman statesman come general, grew up in Umbria, the green heart of what is now central Italy.

Born into a world at war just two years before the Romans sacked Corinth to bring Greece under Roman rule, Quintus lived much of his life as a military man far from the hills, mountains, and valleys of his birthplace.

In 81 BC, he traveled to Morocco, the land of opium, massive trilobites and the birthplace of Antaeus, the legendary North African ogre who was killed by the Greek hero Heracles.

The locals tell a tale that Quintus requested proof of Antaeus, hard evidence he could bring back to Rome to support their tales so they took him to a mound at Tingis, Morocco, where they unearthed the bones of a Neogene elephant, Tetralophodon.

During the Miocene and Pliocene, 12-1.6 million years ago, this diverse group of extinct proboscideans, elephant-like animals walked the Earth.

Most of these large beasts had four tusks and likely a trunk similar to modern elephants. They were creatures of legend, inspiring myths and stories of fanciful creatures to the first humans to encounter them.

Tetralophodon bones are large and skeletons singularly impressive. Impressive enough to be taken for something else entirely. By all accounts these proboscidean remains were that of the mythical ogre Antaeus and were thus reported back to Rome as such. It was hundreds of years before their true heritage was known.

I was lucky enough to travel to Morocco a few years ago and see the Tetralophodon remains. At the time, the tales of Antaeus ran through my head. Could this be the proof that Quintus wanted. As it happens, it was.

TRAPPER CABIN

ROCKY MOUNTAIN HIGH

METASEQUOIA

Metasequoia (dawn redwood) is a fast-growing, deciduous tree native to Lichuan county in Hubei province in central China. It is the sole living species of Metasequoia glyptostruboides. It is one of three species of conifers known as redwoods.

Although the least tall of the redwoods, it grows to at least 200 feet (60 meters) in height. Local villagers refer to the original tree from which most others derive as Shui-sa, or "water fir", which is part of a local shrine. Since its rediscovery in 1944, the dawn redwood has become a popular ornamental tree in the Pacific Northwest. Metasequoia was first described as a fossil from the Mesozoic Era by Shigeru Miki in 1941. Later in 1944, a small stand of an unidentified tree species was discovered in China in Modaoxi (磨刀溪; presently, Moudao (谋道), in Lichuan County, Hubei province by Zhan Wang. 

While the find was exciting, it was overshadowed by China's ongoing conflict with Japan. In 1937, a clash between Chinese and Japanese troops at the Marco Polo Bridge, just outside Beijing, led to an all-out war. A year later, by mid-1938, the Chinese military situation was desperate. Most of eastern China lay in Japanese hands: Shanghai, Nanjing, Wuhan. Many outside observers assumed that China could not hold out, and the most likely scenario was a Japanese victory over China. Yet the Chinese hung on, and after Pearl Harbor, the war became genuinely global. The western Allies and China were now united in their war against Japan, a conflict that would finally end on September 2, 1945. 

With World War II behind them, the Chinese researchers were able to re-focus their energies on the sciences. In 1946, Wan Chun Cheng and Hu Hsen Hsu were able to further study the trees from Lichuan County and publish their work describing a new living species of Metasequoia in 1948. That same year, Arnold Arboretum of Harvard University sent an expedition to collect seeds and, soon after, seedling trees were distributed to various universities and arboreta worldwide for growth trials.

TACHYGLOSSIDAE — MONOTREMES

This chunky monkey is a Short-beaked Echidna, Tachyclossus aculeatus, which grows to about the size of an overweight cat. They are native to Australia and New Guinea. 

Echidnas are sometimes called spiny anteaters and belong in the family Tachyglossidae (Gill, 1872). They are monotremes, an order of egg-laying mammals. There are four species of echidnas living today. They, along with the platypus, are the only living mammals who lay eggs and the only surviving members of the order Monotremata. 

Superficially, they resemble the anteaters of South America and other spiny mammals like porcupines and adorable hedgehogs. They are usually a mix of brown, black and cream in colour. While rare, there have been several reported cases of albino echidnas, their eyes pink and their spines white. Echidnas have long, slender snouts that act as both nose and mouth for these cuties. The Giant Echidna we see in the fossil record had beaks more than double this size.  

HORNBY ISLAND

MOSS & LIGHT

LATE JURASSIC MYSTERIOUS CREEK FORMATION

BACK COUNTRY PORTAGE

THEROPOD TRACKWAY

PEACEFUL NIGHT