Featured in North America
The T. rex ‘dynasty’ reigned for more than 125,000 generations
Only 20,000 lived at any given time, though.
Eastern coyotes are increasingly common—here are 5 facts to know about them
They’re mysterious to biologists and misunderstood by the public.
10,000 years ago, North Americans were chowing down on potatoes—some things never change
We go way, way back.
From the archives: 100 years of mastodon fossil fascination
It's almost easy to find mastodon bones in the United States