And real aliens. I don't mean in a scientific sense, we all know what they are technically. They are lumps of wet mammal. Whatever designed manatees, be it Jack Christ or evolution, put little to no effort into them. They just mope around.
Manatees are the fat goth kids of the ocean.
None of the other sea dwellers like them, no one likes them except fat goth kids and SeaWorld employees. They don't do anything. They don't look neat, they don't make funny sounds. You can't do an imitation of them. 4 - Cats Cats make me sneeze.