If evolution meant only the apex predator survived, there would only be humans in the world. Things evolve to exploit their environment - the snow leopard lives

If evolution meant only the apex predator survived, there would only be humans in the world. Things evolve to exploit their environment - the snow leopard lives in the high mountains, the cheetah lives on the hot plains. You wouldn't expect the most evolved cat breed to exclude or preclude the existence of other cat breeds.