A blue whale has evolved to have teeth and develop into a carnivore. Since everywhere in the world is covered in ice, the blue whale is on the surface. And you see a blue whale coming to you from the north. From the south, you here a shout. You turn around. "Hey, I am a famous kidnapper. You are coming with me. Either that, or be eating by a carnivore whale. Come here, I won’t hurt you”