"These fossils tell us for the first time how exactly our planet recovered from this global cataclysm."

Moose require lots of food to keep moving, but they're surprisingly selective about the plants they eat. Here's how researchers found that out.

New fossil evidence of mammals from the time of the dinosaurs "overturns a classical interpretation of how mammals evolved."

Fathers make it possible for mammal moms to raise particularly large-brained offspring, research finds. Other helpers just won't do.

Mammals with starchy diets—us, dogs, and rats, as opposed to, say, hedgehogs and mountain lions—appear to have adapted, genetically, to stomach more carbs.

About 7 to 6 million years ago, the the Hadley circulation intensified, changing the mammals of South America.

Scientists looked at 400,000 camera-trap photos and observations of tropical mammals to see how they react to climate change.