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| The Extinct Quagga, Equus quagga |
Its head, neck and shoulders carried dark stripes, while those stripes gradually faded along the body, leaving the hindquarters largely brown and the legs pale.
Once treated as a separate species, the quagga is now generally classified as an extinct southern form of the plains zebra: Equus quagga quagga.
Genetic research confirms that it was not a strange half-horse or an evolutionary experiment abandoned halfway through painting. It belonged firmly within the plains zebra family and was less genetically distinct from other plains zebras than its unusual coat might suggest.
The deeper fossil history of the quagga requires a little scientific caution. Fossil teeth and bones rarely preserve the coat markings used to recognize the historical quagga. As a result, we can identify remains as plains zebra—Equus quagga—but cannot confidently determine whether they belonged specifically to the quagga subspecies.
Fossils attributed to Equus quagga are found in Pleistocene deposits across Africa, including numerous cave and karst sites in South Africa.
The species was present in southern Africa by roughly one million years ago, although older African remains extending beyond two million years have sometimes been assigned to it. Some early identifications remain disputed because zebra teeth are frustratingly similar and heavily worn specimens are not always cooperative witnesses.
At South African sites, plains zebras lived alongside the much larger extinct Cape zebra, Equus capensis, as well as three-toed equids such as Eurygnathohippus cornelianus. Fossil zebra remains are especially useful for reconstructing ancient environments because these animals were predominantly grazers. Their presence usually points towards open grasslands with an ample supply of tough, abrasive vegetation.
Genetic evidence suggests that living plains zebra populations expanded from southern Africa approximately 370,000 years ago. The quagga appears to have developed its dramatically reduced striping relatively recently—possibly during the last 120,000 to 290,000 years—as plains zebra populations adapted to different environments across the continent. Its coat was therefore not evidence of an ancient halfway stage between horses and zebras. It was a comparatively recent regional variation on the zebra wardrobe.
Quaggas once roamed the grasslands of what is now South Africa, particularly the Cape and Orange Free State regions. European settlers hunted them heavily for meat and hides and killed them because they were considered competitors with domestic livestock.
By the late nineteenth century, the wild population had disappeared.
The last known captive quagga, a female held at Amsterdam’s zoological garden, died on August 12, 1883. At the time, people did not fully appreciate that she may have been the final living member of her kind. Extinction has an unpleasant habit of being recognized only after the last hoofbeat has faded.
The quagga did achieve a comeback of sorts a century after its extinction.
In 1984, researchers recovered and sequenced mitochondrial DNA from preserved quagga tissue. It was the first published DNA sequence obtained from an extinct animal and helped launch the modern field of ancient DNA research.
Later genetic studies using several museum specimens demonstrated that quaggas carried relatively little genetic diversity and belonged within the natural variation of plains zebras. Their famous coat was striking, but genetically they were not separated from other plains zebras by a vast evolutionary canyon.
A selective-breeding programme in South Africa has since produced plains zebras with reduced striping and quagga-like colouring. These animals may recreate aspects of the quagga’s appearance, but they are not resurrected historical quaggas. Selective breeding can retrieve a visible coat pattern; it cannot recover every lost gene, behaviour and ecological relationship of an extinct population.
The quagga’s story is both scientifically fascinating and deeply sobering. It moved from living herds, to museum skins, to fragments of DNA in barely a century.
Fossils preserve the long evolutionary history of its species, while historical specimens record just how quickly human actions can erase a unique animal from the landscape.
