Though few people travel here today, archaeologists believe that ancient populations migrated from Russia into the Americas across this stretch of land during the Ice Age ... of mastodons and mammoths ...

Once in North America, T. rex evolved and became widely distributed across Laramidia, the western half of the continent ...

A new study could explain why some ancient animals, like mammoths, crossed the Bering Land Bridge to North America during the last Ice Age while others, like woolly rhinos, stayed put in Eurasia.

A new study based on mathematical modeling weighs in on the fierce debate among paleontologists over the origins of the king ...