If you've ever wondered what a mindfuck looks like, now you know

Meet Siphopteron species 1. It's a species of sea slug, recently discovered by Rolanda Lange. To procreate, two members of the species get together, stick organs into each other's heads, and fertilize. That's right — nature has at last provided us with a perfect example of the mindfuck. » 11/12/13 5:00pm 11/12/13 5:00pm

The only time it pays to be stabbed repeatedly happens to be during sex

What if every time you had sex, you had to agree to let your partner stab you first — would it be worth the trade-off? While you're mulling that over, consider this: in some species of hermaphrodite sea slug, the trade-off is flipped, with some slugs enduring the unpleasantries of sex in the hope of getting a stab… » 8/26/12 1:00pm 8/26/12 1:00pm