Abstract

Copulation that involves wounding the partner's body, is a widespread phenomenon in hermaphroditic animals. Traumatic mating may be collateral damage of diverse strategies (from physical anchorage to injection of substances to manipulate the partner), but the trauma could also be adaptive by itself if it delays remating by the injured partner. In this issue of the Journal of Morphology, Carbayo and Marian (pp. 1765–1771) report and illustrate several lines of morphological evidence of a novel case of intragenital copulatory wounding in Tricladida (Platyhelminthes) suggesting that traumatic mating is pervasive and underreported in Metazoa.

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