They act that way
because they're intelligent, social animals. Compassion and cruelty are two sides of the same coin, unfortunately.
Still, baby humans don't automatically make me think, "There goes a future rapist!" (even though AROOO would probably disagree with me, at least when it comes to any infant with a
penis fucking weapon), so I don't see why I should respond to cute, cuddly, tiny, squeeeeeeeeeeeeeeeeeeeeeeee-inducing baby dolphins like that.