You probably know that carnivores are animals that primarily eat a diet of meat. In scientific terms, the order Carnivora includes several familiar families of mammals: dogs and their kin, bears, raccoons and their kin, weasels and kin, mongooses, hyenas and, of course, Felidae, the cat family. All these families descended from the same mammal ancestors, which arrived on the scene sometime after the age of the dinosaurs.