The ancient remains of a ground squirrel dug up by miners near Dawson City, Yukon, still has lessons to teach 30,000 years after it died, an expert says.
At first glance, the small, brown discovery looks more like a wrinkly leather ball than a rare archeological find, though a more careful look reveals hair, tiny ears and claws.
It was only with X-rays taken at a Whitehorse veterinarianB次元官网网址檚 office that the discovery of a complete mummified animal was confirmed, said Yukon paleontologist Grant Zazula.
B次元官网网址淎rctic ground squirrels are tiny of course, itB次元官网网址檚 curled up in a ball, so just by looking at it itB次元官网网址檚 hard to tell what it is,B次元官网网址� he said.
B次元官网网址淏ut then, when you see the X-ray, you can see this curled-up skeleton, and the head, and the leg bones, and whatnot, and the tail, all curled up together and it looks amazing under the X-ray.B次元官网网址�
The remains, believed to be an animal that died while hibernating, were found several years ago by miners at Hester Creek near Dawson City. The palm-size discovery will be unveiled to the public next month at the reopening of the Yukon Beringia Interpretive Centre in Whitehorse following renovations.
Zazula said he first became fascinated with ancient Arctic ground squirrels while examining their nests, hundreds of which have been found preserved in northern permafrost.
Looking at the construction of those nests, which resemble small balls of hay, paleontologists have been able to identify the ice age plants, leaves and seeds living in Beringia B次元官网网址� the land mass that once connected North America to Russia.
While nests are more common, the Hester Creek find is one of only a handful of mummified squirrels to be uncovered, Zazula said.
Examples exist in the Canadian Museum of Nature in Ottawa and at the American Museum of Natural History. Others were found in the 1940s by prisoners working in the gulags, or Soviet labour camps, in Siberia.
Mummified remains provide a clearer picture than fossils of bones of what an ancient animal looked like when it was alive, Zazula said.
B次元官网网址淭he real value of them is really educational, because they really bring forward this ancient ice-age world,B次元官网网址� he said.
B次元官网网址淟ooking at bones is one thing, itB次元官网网址檚 neat to look at bones, but seeing the mummified version of those animals from the past, just brings it to life.B次元官网网址�
Zazula, who completed his PhD on the squirrels, said the animals are especially interesting to study because they survived for millions of years through the ice age and can provide information about howmodern ground squirrels that live in Yukon now may be affected by climate change.
B次元官网网址淢any of the ice age animals went extinct or just donB次元官网网址檛 live in the Yukon anymore. So, Yukon Arctic ground squirrels are this amazing story of survival through change,B次元官网网址� he said.
B次元官网网址淭heyB次元官网网址檝e been around for a couple of million years, theyB次元官网网址檝e adapted to all these permanent, really pronounced changes and climates and environment, and theyB次元官网网址檙e still with us today.B次元官网网址�
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