Fossil Horses--Evidence for Evolution

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Science  18 Mar 2005:
Vol. 307, Issue 5716, pp. 1728-1730
DOI: 10.1126/science.1105458

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The modern day horse Equus is a beloved icon but also, thanks to its many fossil relatives, has proved valuable for understanding macroevolution (that is, the long-term evolution of species). In his Perspective, MacFadden discusses fossil evidence supporting a branching family tree for the Family Equidae and points out why horse fossils have been beneficial for understanding evolution.