How Horses Took Over North America (Twice)

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The ancestors of modern horses became so successful that they spread all over the world, to Europe, Asia, South America, and Africa. But in their native range of North America, they’ll vanish for 10,000 years. Until another strange mammal brings them back.

The illustration of Equus Simplicidens--also known as the Hagerman Horse--is by Roger Hall. You can check out more of Roger's work at http://InkArt.net

Produced for PBS Digital Studios.

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References:
Fossil Horses by Bruce J. MacFadden
http://www.ajsonline.org/content/s3-12/71/401.extract
https://www.jstor.org/stable/4522989?seq=1#page_scan_tab_contents
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https://link.springer.com/article/10.1007/s12052-012-0394-1
https://www.nationalgeographic.com/adventure/features/environment/wild-horses-part-one/
https://www.sciencedirect.com/science/article/pii/S0305440313000241
https://www.palass.org/publications/palaeontology-journal/archive/39/3/article_pp663-680
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https://www.geolsoc.org.uk/Geoscientist/Archive/June-2014/The-Arctic-Azolla-event
http://facstaff.uwa.edu/jmccall/Evolution%20of%20the%20Horse.htm

Видео How Horses Took Over North America (Twice) канала PBS Eons