ice age

New techniques have shown that people reached the New World far earlier than the long-standing estimate of 13,000 years ago, but scientists still debate exactly when humans arrived on the continent—and how.

Diverse lines of evidence point to humans’ presence in the New World long before the dawn of Clovis culture. But rewriting this chapter of human history raises many questions about how these early people came to inhabit these continents.

Modern brown bears carry DNA from extinct cave bears that lived during the Ice Age.

During the last ice age, there wasn’t much plant matter to eat on northern steppes, but herbivorous woolly mammoths were abundant. How did they survive?

Scientists have identified a new genus of extinct horse that lived in North America during the last ice age. 

An artist’s impression suggests what the Caribbean may have looked like before humans arrived.