This evolved from Aikhmirostoma and its name means "two mandible". As its name says, it has two pairs of mandibles. But the most amazing feature are the "hairs" on the end of their tail. It is used to detect thing up to 5 feet away from its tail, a way to find predators stalking it, but for now, it is the apex predator so that just helps it find mates and find prey. Its body is 1 foot 2 inch on average.