An Ankylosaurus probably couldn't kill a Tyrannosaurus rex with the club at the end of its tail, but new research suggests the bony bludgeon could definitely break its ankles. To estimate just how ...

Whenever Ankylosaurus is mentioned—in basic cable documentaries, cheap time-travel novels, or elsewhere—you might as well just start counting the seconds until somebody inevitably compares it to a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. While this herbivorous dinosaur was a massive animal, a re-examination of its fossils in 2004 by ...

Ankylosaurus magniventris was the prehistoric tank of the late Cretaceous period, some 70 million to 66 million years ago. This enormous four-legged dinosaur had a squat body covered with bony plates ...

Predators would have had to flip the squat, four-legged animal over, exposing its unprotected underbelly, to find a weak spot. Ankylosaurus's distinctive plates did more than deflect blows—they could ...