A century after joining the Field Museum’s collection, the Tsavo lions remain one of the museum's most important displays.

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 teeth ...

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 teeth ...