The Ice Age Sabertooth kept its most formidable weapon right in its mouth—a pair of enormous curved teeth with serrated edges like steak knives, as long and as sharp as the teeth of a Tyrannosaurus rex! It was one of the fiercest cats to ever live. And because so many sabertooth cats died in the asphalt pools of what is now known as Rancho La Brea in Los Angeles, scientists know more about them than any other prehistoric cat. Ice Age Sabertooth tells the story of these ferocious predators—how they lived, hunted, and killed their prey, and what they may have looked like.