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Baby dinosaurs weren’t coddled like lion cubs or elephant calves—they were more like prehistoric latchkey kids. New research ...

The idea that male mammals tend to be larger than females has been scientific dogma since Darwin. Bigger bodies, the thinking goes, are better in the battle to win the attention of choosy females.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. If you were to travel more than 120 million years back in time to ...

Fluorescent anatomy, which recently seemed to be a quirk in unusual animals such as platypuses and opossums, was found in most living families of mammals. By Cara Giaimo At first, it seemed to be ...

A new model suggests that in 250 million years, all land will collide into a supercontinent that boosts warming and pushes mammals to extinction. By Carl Zimmer It’s been about 250 million years since ...

Zebra stripes? Leopard print? Neither were in vogue among the earliest mammals during the Age of Dinosaurs. Early mammals and their close relatives probably sported dark, drab coats from snout to tail ...