This is the grossest penis I have yet drawn.

Ostriches evert (turn inside out and inflate) their penises both to have sex and to poop. I guess it would get in the way otherwise?

Reference: Brennan, P.L. and Prum, R.O., 2012. The erection mechanism of the ratite penis. Journal of Zoology, 286(2), pp.140-144.

This is a series of little illustrated factoids about animal reproduction, posted daily. I’d love to hear your suggestions/ feedback. I also post these on my insta.

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