Sometime during the Cretaceous Period, 125 million years ago, a feisty mammal the size of a domestic cat encountered a dinosaur three times its size and thought it looked like a tasty meal. A fossil ...

When dinosaurs ruled the Earth, we tend to think of the mammals at the time — including our distant ancestors — as small and quivering in the shadows. "We've always had this picture of mammals as the ...

While there is little doubt that many a Mesozoic mammal became a meal for a dinosaur, it may come as a surprise to learn that some mammals also dined on dinos. A dramatic fossil unearthed in ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. According to some scientists, mammals are currently the most ...

An international collaboration between scientists and researchers has lead to the discovery of Earth's earliest known mammal — the 225 million-year-old Brasilodon quadrangularis. Using fossil tooth ...

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Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. While humans and dinosaurs only co-existed in cartoons like The ...