In this special holiday episode, we talked about Syngnathidae (the family of ray-finned fishes including pipefish, seahorses, and sea dragons), particularly Hippocampus spp. (seahorses) and their unusual reproductive strategy of male pregnancy. We talk about the physiology of seahorses' pregnancy, with tangents about the complexity of biological sex and reproductive strategies, other fish, evolution, and philosophy of biology. 
A transcript and show notes are available on our website here: https://asabpodcast.com/2022/06/20/episode-52/
The show is on Twitter @ASABpod, Charles @cockroacharles, and Tessa @spacermase. 
Our intro music is by Nicole Petkovich. 
Thank you for listening!