Why hello there Mr/Miss Barnacle

It doesn’t seem fair that the creature with the largest penis relative to its body size should be a hermaphrodite. That’s just greedy.
Barnacles have giant schlongs on account of the fact that they don’t leave their shells to mate, meaning the old chap has to venture out on his own. They also have testes towards the back of the head, which seems an odd place to keep them.
Then again, life as a hermaphrodite is pretty weird. There are all sorts of unusual things to contend with. Apparently self-fertilisation is “rare,” but even that seems altogether too likely for most of us.
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