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Garrott, Robert A.; Oli, Madan K.
Science (American Association for the Advancement of Science), 08/2013, Letnik: 341, Številka: 6148Journal Article
Although horses evolved in North America, they went extinct 10 to 12 thousand years ago. Spanish conquistadors returned domestic horses to the continent in the mid-1500s, and since then, domestic horses have escaped captivity and also were purposefully released onto western rangelands where they thrive today. Most free-roaming horse populations are managed primarily by the Bureau of Land Management (BLM) of the U.S. Department of the Interior (1).
