A group of Przewalski's horses, once considered extinct in the wild. Photograph by Michael Nichols, National Geographic
Posted on 07/03/2013 9:08:46 PM PDT by SunkenCiv
Samples from a horse leg bone more than 700,000 years old have yielded the oldest full genome known to date...
The Pleistocene horse genome Orlando and colleagues pieced together helped them determine that the ancestor to the Equus lineage -- the group that gave rise to modern horses, zebras, and donkeys -- arose 4 to 4.5 million years ago, or about two million years earlier than previously thought...
The team found that Przewalski's horses were an offshoot of the lineage that gave rise to domestic horses. The two groups diverged around 50,000 years ago...
The six-inch (15-centimeter) horse leg bone the team analyzed originated in the Yukon Territory of western Canada. Permafrost kept the remains in a kind of cold storage for about 735,000 years until scientists dug it out in 2003.
(Excerpt) Read more at news.nationalgeographic.com ...
A group of Przewalski's horses, once considered extinct in the wild. Photograph by Michael Nichols, National Geographic
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Granny Smith?
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