Sea horses are very underrated creatures. Indeed, it is true that it might be to do with the fact we don’t see them very often, so don’t think about them a lot.
Check out this video. Nice and educational. About 3.18 mins in, Sweetpea, the seahorse featured, passes her eggs onto the male sea horse (er – stallion??) and HE gives birth. It looks like an orgasm of tiny white things – and in fact they are baby seahorses.
Now, I know “birth” and “orgasm” may not necessarily go together in one’s mind, but just watch it. Maybe I am just a bit sick.