Today I learned about the Bering Land Bridge.
The Bering Land Bridge was a land bridge that connected eastern Siberia to Alaska during the Ice Ages. The bridge helped people and animals travel to America during the Ice Ages about 12,000 years ago. It is believed that the first people to populate America came from Siberia using this bridge, before Christopher Columbus ever came to America. Some animals, such as the Wolly Mammoth and the Saber-Tooth cat, first traveled to America using this bridge.
The Bering Land Bridge no longer exists because the ice melted with the end of the Ice Age. This bridge is now under the Bering and Chukchi Seas, according to the Bering Land Bridge National Preserve.
You can learn more about the bridge here: