Articles on Equids
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Horse fossils are abundant and widespread across North America. Scientists often use their long history to illustrate how species evolve in response to a changing environment.
By only focusing on preserving the genetic purity of a species, conservationists risk the extinction of isolated populations.
How the zebra got its stripes is not only a just-so story, but an object of scientific inquiry. New research suggests that stripes help zebras evade biting flies and the deadly diseases they carry.
