The ankylosaur boasted a clubbed tail strong enough to break bones. Here's how a dinosaur developed into one bad herbivore you don't want to mess with.
Danny Gallagher, CNET
Tue, 09/01/2015 - 6:23pm
The ankylosaur boasted a clubbed tail strong enough to break bones. Here's how a dinosaur developed into one bad herbivore you don't want to mess with.