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Female frogs may croak to deter males from mating with them

Some female black-spotted frogs croak when a male approaches, and it鈥檚 not a come-on 鈥 the signal seems to persuade males not to attempt coercive mating

By Christa Lest茅-Lasserre

30 June 2023

Handout picture supplied by Makoto M. Itoh. A Pelophylax nigromaculatus frog photographed for his study study Female pond frog vocalisation deters sexual coercion by males. mac_itoh@yahoo.co.jp

Female black-spotted frogs seem to deter males by croaking

Courtesy of Makoto M. Itoh

Male frogs often force females to mate with them, but in one species, a croak from the female seems to persuade males to leave her alone. The sound may be an 鈥渉onest鈥 signal that she isn’t fertile and mating would be a waste of the male鈥檚 sperm and energy.

鈥淚n general, male frogs are known to jump on even inorganic objects if they are female-like,鈥 says at Nagoya University in Japan. 鈥淗owever, this species [stops attempting] such holding behaviour at the…

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