5-Million-Year-Old Arctic Fox Ancestor Found in Tibet

news.yahoo.com Published: June 15, 2014
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The fossilized jawbone and teeth of a 5-million-year-old fox have been unearthed in Tibet, Yahoo News reports.

The fox, Vulpes qiuzhudingi, is probably the ancestor of modern Arctic foxes. The discovery, along with several other fossils from cold-loving mammals, buttress the Out of Tibet hypothesis: That iconic ice-age mammals such as woolly mammoths, saber-toothed tigers and giant sloths first evolved for the cold weather in Tibet before fanning out over the steppes of Central Asia and into North America.


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