You just never know what information is going to fall into your hands (or your ears) when you're listening to podcasts. Thanks to the BBC's Chris Evans, I now know that tiger slugs have an interesting way of ensuring their sexual partners don't do it with other slugs. Heavens, it also means that they don't do it with them again either - but there may be bigger things at play here.
Tiger slugs mate by hanging from threads in trees. While theyre hanging there, their sexual organs, which apparently are longer than they are, are released and mating takes place. Afterwards, one of the slugs bites off the other's reproductive organ and eats it - meaning they are well-placed to get on with the reproducton. The other slug probably just wanders off somewhere - not sure if their bits are going to grow back at all. It's interesting what the animal kingdom has worked out to keep some species going, isnt it?
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