Photo of a female seahorse depositing eggs into a male seahorse's pouch.

Episode 52: Father’s Day Special – Seahorses and Male Pregnancy

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. 

Still from Our Flag Means Death showing a close-up on a pink and yellow moth resting on a finger.

Episode 49: The Science of “Our Flag Means Death”

Like most gay people, we have now watched the HBO series Our Flag Means Death (full season 1 available now!). Unlike most gay people, Charles is a PhD candidate in history and philosophy of biology. In this episode, we touch on several topics in history of science touched on in the show: Linnaean taxonomy and binomial nomenclature, phrenology, and scurvy (caused by humans’ inability to synthesize our own Vitamin C, setting us apart from most vertebrates). 

The "two muscular arms grasping each other" meme against a background of space. On one arm is "astronomy/astrobiology" and on the other is "taxonomy/systematics."

Episode 48: Lucianne Walkowicz on Space – Who Does It Belong To? How Gay Is It?

In this episode we’re joined by science superstar (pun intended) Lucianne Walkowicz to talk about their research, who space belongs to (including whether it can “belong” to anyone), and how gay space is. Charles also defends leeches (they probably won’t give you diseases!), the animal, but not leeches, metaphor for the capitalist class. 

Eggplant emoji against trans flag.

Episode 47: “So, What’s In Your Pants?” (Genitals, Part II)

Warning for this episode that we are talking at length about reproductive anatomy and genitals, the effect of testosterone and genital reconstruction of the clitorophallus.

The second in our two-part series on genitals medical transition, in this one we talk about the history and procedures of metoidioplasty and phalloplasty, as well as possibilities for the future.

Plastic and silicone vaginal dilators.

Episode 46: “So, What’s In Your Pants?” (Genitals, Part I)

Warning for this episode that we are talking at length about reproductive anatomy and genitals, particularly vaginoplasty as a gender-affirming surgery. This episode includes frank discussion of vaginoplasty as a procedure, as well as Tessa’s personal experience. 

The first in a two-part series on trans people and genitals, this episode focuses on vaginoplasty, with an explanation of embryonic sexual differentiation, a brief history of vaginoplasty in the 20th century as part of medical transition, and the primary method used up to the present day. 

Space-filling model of gonadotropin-releasing hormone.

Episode 44: ASAB Presents the Science… Hormone Therapy

In this episode, motivated by the recent barrage of anti-trans legislation, we begin a dig into the science underlying gender-affirming care, beginning with hormones and hormone therapy. Topics include “sex” hormones and how they work, chromosomal sex determination, and puberty blockers (mechanism and long-term health prospects). 

Animorphs logo

Episode 43: Animorphs, “The Departure”

This week Tessa and Charles talk about Animorphs for the first but assuredly not last time, particularly about the Cassie book, “The Departure,” in which Cassie has just the worst weekend ever.


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