Tag Archives: marine science

Hooks and barbs

Shark sex is BRUTAL. Also, now you know sharks, skates, and rays have external genitalia, you can go to an aquarium and correct people whenever they misgender the fish. It’s a lot of fun! Probably why no one ever wants to go to an aquarium with me twice, because they can’t imagine having so much fun a second time.

References: Klimley, A.P., 2013. The biology of sharks and rays. University of Chicago Press.

Jones, C.J., Walker, T.I., Bell, J.D., Reardon, M.B., Ambrosio, C.E., Almeida, A. and Hamlett, W.C., 2005. Male genital ducts and copulatory appendages in chondrichthyans. Reproductive Biology and Phylogeny of Chondrichthyes: Sharks, Batoids and Chimaeras, ed. WC Hamlett, pp.361-393.

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.

Worm lies

They do have long proboscises, tho.

These poor worms in phyla Priapulida mate through external fertilization.

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.

mucus cuddle

This is my favorite penis fact, by far. Such a cute little slug mucus cuddle.

Reference: Davison, Angus, 2019. Leopard slugs mate in the most beautifully bizarre way – and nobody knows why. The Conversation. https://theconversation.com/leopard-slugs-mate-in-the-most-beautifully-bizarre-way-and-nobody-knows-why-128284

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.

A little too stabby

These little slugs are TINY. Like just a few mm long.

The stylet also inserts something into the other slug that increases it’s fertility.

Reference: Anthes, N. and Michiels, N.K., 2007. Precopulatory stabbing, hypodermic injections and unilateral copulations in a hermaphroditic sea slug. Biology Letters, 3(2), pp.121-124.

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.

Penis/ Butt chin

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: Shibukawa, K., Tran, D.D. and Tran, L.X., 2012. Phallostethus cuulong, a new species of priapiumfish (Actinopterygii: Atheriniformes: Phallostethidae) from the Vietnamese Mekong. Zootaxa, 3363(1), pp.45-51.

Austin, C.R., and Short, R.V. eds., 1986. Reproduction in Mammals. Cambridge University Press.