From the deep-sea goblin shark with up to 115 teeth and jaws that shoot forward to giant coconut crabs with bone-crushing claws and cassowaries armed with dagger-like talons, nature has produced ...

About 66 million years ago, a dinosaur—maybe a T. rex or a Nanotyrannus—ate a bird. The record of that meal, in the form of fossilized poop, has survived to today, preserving the best example of a ...