Scientists are sharing weird animal sex facts on Twitter

The scariest and silliest mating rituals in the animal kingdom. 

Rachel Feltman
Saturday 03 October 2015 09:59
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Remember #JunkOff, the hashtag that had scientists sharing animal genitals all over Twitter? Now there's a hashtag to celebrate all manner of weird animal sex. Because the equipment isn't always the weirdest part.

Here are our favorite submissions to #HumpOff. If you're looking for more fun science, check out the Real Scientists Twitter account. Every week it's curated by a different scientist. #HumpOff was dreamed up by this week's curator, evolutionary biologist Tom Houslay.

For some species, the weirdest sex is sex where nobody has to die. Octopuses are notoriously violent partners, and the males usually keep their mates at as far a distance as possible. But the Larger Pacific striped octopus mates beak to beak -- and the reproductive partners can hole up together for several days without anyone getting hurt.

Can't leave out this Booby dance:

Sometimes weird sex has to do with a totally benign body part.

And sometimes sex is just terrifying.


Sometimes things are surprisingly pleasant -- or at least cooperative.

Sometimes it's just a lot less impressive than you'd think.

Then there's sexual selection. When females prefer mates with certain traits, those traits can quickly become exaggerated in the population. Sexual preference can drive incredibly fast evolution in a species.

Which brings us, in conclusion, to the ultimate battle of the sexes gone wrong. The duck penis:

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