Narrator: Lions have them, hippos have them, and even you and I have them: canines, those long, pointy front teeth. They're actually the longest teeth in the human mouth. So what are these long, sharp ...

Given their huge size, there is no question as to why hippopotamuses are one of the most feared mammals. Apart from their bulky appearance, they also have an odd-looking mouth that features huge, ...

Saber teeth — the large fangs of saber-tooth cat fame — are fearsome. They evolved at least five times in predators that are now extinct, but there's been something of a mystery as to why. Saber teeth ...

As scarce as hen's teeth? Well, that depends. Researchers in Wisconsin discovered some years ago while working with a chicken embryo for another study that the bird had rudimentary teeth. They ...

We share our sharp canine teeth with lions, hippos, and other mammals. But believe it or not, they have nothing to do with tearing into meat. Instead, our ancestors originally used them to fight for ...

Contrary to popular belief, human canines are not for tearing and ripping meat. Instead, our ancestors used them to fight male rivals for mating rights. Over time, human species evolved smaller and ...