The Data in a Dino’s Smile

The Data in a Dino’s Smile

In life, a T. rex’s teeth were fearsome. Arguably the majestic carnivore’s most valuable weapon. But 66 million years after the king of dinosaurs exited the Mesozoic scene, its fossilized, banana-size flesh rippers are finding a new purpose. Fossilized T. rex teeth—along with gnashers from other dinosaur species—are yielding chemical clues that can help researchers reconstruct Earth’s ancient climate. Nautilus Members enjoy an ad-free experienc…