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Ancient North American Mammals May Have Gathered in Mexico and Diversified Before Moving to South America, Priming Them to Thrive There
An analysis of fossils from the country hints that animals from the north stayed in a "holding pen" between seven million and ten million years ago. The timeline might help explain why so many South American mammals have North American ancestry, but not vice versa
TypeWeb Page
Domainwww.smithsonianmag.com
Providergeneric
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