Evolutionary ecologists speculated that hermaphrodite sea slugs who consistently stab each other in the head with penile stylets while mating may do so in order to control their partners' brains or to make them averse to mating with other slugs. | Harper's Magazine

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Evolutionary ecologists speculated that hermaphrodite sea slugs who consistently stab each other in the head with penile stylets while mating may do so in order to control their partners’ brains or to make them averse to mating with other slugs.

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Evolutionary ecologists speculated that hermaphrodite sea slugs who consistently stab each other in the head with penile stylets while mating may do so in order to control their partners’ brains or to make them averse to mating with other slugs.

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