Same-sex sexual behaviours have been reported in a wide variety of species, and a new study suggests that, although animal scientists widely observe it, they seldom publish about same-sex sexual behaviour in primates and other mammals. To find out why and to hear about some of the examples of sexual diversity from the animal kingdom, Ian Sample hears from Josh Davis, a science writer at the Natural History Museum in London and author of the book A Little Gay Natural History
Penguin noises by permission of freesound.org
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