The human footprints that prove the Americas were populated much earlier than we think

Our species began migrating out of Africa around 100,000 years ago. Aside from Antarctica, the Americas were the last continents humans reached, with the early pioneers crossing the now-submerged Bering land bridge that once connected eastern Siberia to North America. At times throughout the Pleistocene ice age, which ended 10,000 years ago, large ice sheets […]