The Bering Land Bridge that once connected Asia and Alaska may have emerged much later during the last ice age than previously thought, narrowing the window of time during which humans could have migrated to the Americas, increasing evidence suggests.
The land bridge likely existed about 35,000 years ago, before the coldest part of the last ice age, known as the last glacial maximum (LGM), a new study finds. This jibes with one of the oldest reputably dated sites of human activity in the Americas — the 23,000-year-old footprints found at White Sands National Park in New Mexico.
