Data from 96 mastodon teeth reveals that the proboscidean lived in fruit-rich forests and traveled widely. Although they mostly fed on leaves, fruit was part of their diet, although more in some ...

Sloths weren’t always the slow, tree-hugging creatures we know today. For millions of years, they came in a wild variety of ...

The Vela explosion stands out as the most dramatic example, occurring when our planet was emerging from the last ice age around 13,000 years ago.