 The Bactrican camel diverged from the dromedary about 1 million years ago, according to the fossil record.The last camel native to North America was "Camelops hesternus", which vanished along with horses, short-faced bears, mammoths and mastodons, ground sloths, sabertooth cats, and many other megafauna, coinciding with the migration of humans from Asia.Like horses before their extinction in their continent of origin, camels spread across the Bering land bridge, moving in the opposite direction from the Asian immigration to America.