This was as a result of movement through the Bering Strait Land Bridge, according to the scientists from the University of California. Because the ancient horses had DNA from both North American and Eurasia, scientists say they used the Bering Strait Land Bridge to freely travel between the continents. However, the recent study shows it was also used as a passage way by ancient horses. The analysis showed two periods of dispersal between the continents, both coinciding with periods when the Bering Land Bridge would have been open: the Middle Pleistocene and the Late Pleistocene. With a location and an approximate date for each genome, they could track the movements of different lineages of ancient horses.

Source: Daily Mail May 18, 2021 20:44 UTC