Science
Revealed: The Shipworm Sex Tapes – The New York Times
Nature’s weirdest clam surprises scientists once again, this time in video footage of its mating habits.

When Dr. Shipway stuck the GoPro into the soup of gametes, he noticed something unusual: The shipworms had entwined their siphons in enormous knots. Just a big snake pit of siphons, he said. Each shipworm has an incurrent siphon, which takes in water, and an excurrent siphon, which expels waste. In certain knots, the excurrent siphons of different shipworms appeared to be wrestling with each other in competition, pulling incurrent siphons away from groping the excurrent ones. The shipworms kept…

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