carnivore

[ˈkɑːnɪˌvɔː]
n
any placental mammal of the order Carnivora, typically having large pointed canine teeth and sharp molars and premolars, specialized for eating flesh. The order includes cats, dogs, bears, raccoons, hyenas, civets, and weasels
any other animal or any plant that feeds on animals
an aggressively ambitious person