When most people think of ferocious, blade-like teeth on prehistoric creatures they picture Smilodon, better known as the saber-toothed tiger. But in the world of dinosaurs, theropods are well known ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in mammals, ...