SIO518: Biological Definitions Do Not Do What Richard Dawkins Says They Do

Thomas is joined by Dr. Eric Jaffe, biologist, dinosaur enthusiast, and high school biology teacher, for a conversation that starts with a deceptively simple question: what are biological definitions actually doing?

It turns out that biology is far more like history than math, and that difference has enormous consequences for anyone trying to weaponize phrases like "the biological definition of sex." Dr. Jaffe walks through why definitions in inductive sciences are descriptive, not prescriptive, and what that means for species, chromosomes, fungi, LeBron James, and trans people.

"Exceptions aren't the exceptions in biology. They are built into what we call biological systems."

Plus: Patreon Q&A questions on alien DNA, how new chromosomes evolve, the 97% chimp figure, CRISPR vs. what came before, and Trump's research budget cuts.

• Cells at Work (anime recommended by Dr. Jaffe)

• Project Hail Mary (film referenced)

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