The image of the hulking T. rex and its comically undersized arms is deeply ingrained in pop culture, but it isn’t really fair. They were muscular little appendages well-suited to their evolutionary ...

Carnotaurus ’ hide—as demonstrated by fossilized skin impressions—was covered in small scales with a smattering of bony lumps called “osteoderms” tossed in for good measure. 9. It’s Related to an ...