American pronghorns evolved speed millions of years before cheetahs, helping movement and survival in changing landscapes.
CAPE TOWN, South Africa (AP) — For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, hoping conservationists never have to use ...
The fastest land animal in North America is the American pronghorn, and previously, researchers thought it evolved its speed ...
Namibia Cheetah Sperm Bank FILE - A cheetah descends from on top of a mound in the savannah of the Maasai Mara, Kenya, July 6, 2015. (AP Photo/Ben Curtis, File ...
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