Category Archives: fish

#1 Dad #2

This is the only way I could ever be induced to have children

It’s amazing how many articles talk about seahorse males being ‘pregnant’ and how few of them actually mention how the eggs get in there.

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.

Bigger isn’t always better

What I want to know is if this makes them swim around in circles.

References:

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

Böhm, CC BY 2.5 <https://creativecommons.org/licenses/by/2.5&gt;, via Wikimedia Commons

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.

Free ride

I’ve gotten conflicting info on whether or not the males desiccate only leaving their gonads behind or whether they actually thrive better than free-living males.

References: Nouvian, C., 2007. The deep. University of Chicago Press.

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.

So many spiny knobs

I found conflicting diagrams, both from published books, on whether the fertilizing clasper is anterior or posterior to the spiny knob clasper. It might vary between species.

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

By Linda Snook / MBNMS – http://www.mbnms-simon.org/other/photos/photo_info.php?photoID=1307, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1935773

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.

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.

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.