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.
Reference: Keogh, J.S., 1999. Evolutionary implications of hemipenial morphology in the terrestrial Australian elapid snakes. Zoological Journal of the Linnean Society, 125(2), pp.239-278.
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.
Reference:
edyong209, 2013. Alligator penis surprise. SERIOUSLY WATCH THIS! Youtube. Attributed to Brandon Moore.
Kelly, D.A., 2013. Penile anatomy and hypotheses of erectile function in the American alligator (Alligator mississippiensis): muscular eversion and elastic retraction. The Anatomical Record, 296(3), pp.488-494.
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.
Reference: Johnston, S.D., Smith, B., Pyne, M., Stenzel, D. and Holt, W.V., 2007. One-sided ejaculation of echidna sperm bundles. The American Naturalist, 170(6), pp.E162-E164.
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.
birdoptera 