Scientists Determine T. rex Body Temperature Using Fossilized Teeth

Using fossilised teeth, scientists have finally taken the T. rex’s temperature – and it wasn’t too different from our own.

Researchers once thought that dinosaurs were sluggish, cold-blooded creatures. Later findings challenged that, suggesting that older dinosaurs were warm-blooded and could control their body temperature.

Most scientists agree that Tyrannosaurus rex was warm-blooded, but pinning down the exact core temperature of an extinct creature is difficult.