Snail Sex Tape
Summary
Host Molly Webster and evolutionary biologist Menno Schildhuizen explore the bizarre reproductive biology of snails. They discuss how these hermaphrodites engage in complex mating rituals, including the use of "love darts"—calcium needles shot into partners to deliver hormones that manipulate sperm uptake. The episode reveals how snail genitalia evolve rapidly, turning sex into a biological duel of persuasion and warfare.
Topics discussed
Sponsors: Progressive, Sierra, and Plan B
Introduction: Snails in Borneo and Brooklyn
Why study snails? Evolution on a human scale
Snail anatomy: Hermaphroditism and genitalia
Mating mechanics: Long penises and sperm digestion
Sponsors: Progressive, Sierra, Plan B, Apartments.com
The Love Dart: A limestone needle weapon
Hormonal manipulation: How darts ensure fertilization
Evolutionary arms race in snail reproduction
Myths, medieval art, and finding darts in nature
Credits and further reading on snail sex
Sponsors: Progressive and Sierra
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