Wild horses have been known since prehistory from central Asia to Europe, with domestic horses and other equids being distributed more widely in the Old World, but no horses or equids of …

Dec 17, 2025 · The evolutionary lineage of the horse is among the best-documented in all paleontology. The history of the horse family, Equidae, began during the Eocene Epoch, which …

Aug 7, 2025 · Over 55 million years, the horse has evolved in response to climate, predators, shifting landscapes, and the encroaching shadow of humankind. It is a tale etched in fossilized …

Feb 8, 2019 · These 10 ancestral equines marked important advances in the long, slow progress of horse evolution in Cenozoic North America.

May 15, 2025 · The horse originated in North America around 4 million years ago. As changing sea levels created land bridges between continents, the horse traveled into Eurasia and back.

May 9, 2005 · All modern North American horses are descended from Old World horse brought to America by people. In the table below and the display at the Museum each Epoch is …

Oct 12, 2021 · Horses first evolved in North America during the Eocene epoch and adapted to the changing climate over tens of millions of years. Although some older fossil horses had three or …

Ancient horses originally evolved in the grasslands of the Great Plains of North America from rabbit-size dawn horses, called eohippus, which roamed the earth 65 million years ago.

Aug 25, 2025 · Explore the fascinating journey of prehistoric horses evolution, from small grazers to today's equines. Discover key species and timeline milestones.

The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, forest-dwelling Eohippus into the …