Blue whales are the most massive creature on earth. And yet it is surprisingly flexible and able to move about with remarkable ease. This allows for graceful and borderline romantic mating rituals.
They also have an alien-like tongue that can invert itself, allowing the entire area from the whale’s mouth to its belly button to expand.
This is completely different than all other whales, and all other mammals.
So while they aren’t actually from space, they look very alien.
Read more about it here!