leopard slug
It might not seem like the an 8 inch long leopard slug could put on an amazing sex show. After all, they can be real slimeballs. But actually, these hermaphroditic gastropod mollusks' sexual behavior is quite... well... beautiful.
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The foreplay for the fertilization, which consists of a lot of licking and nibbling, can last up to 2.5 hours. That's about 793 days in slug time. And when it's all over with, both slugs (slowly) retreat to cold and damp hideaways in order to lay their respective sets of eggs.
If you're thinking about eating these monster slugs, please don't.…