Evolutionary biologist, Olivia Judson knows more than most of us about the weird and wonderful sexual practices that go on between our fellow members of the animal kingdom.
Many of them are described in eye-popping detail in her book Dr Tatiana's Sex Advice To All Creation.
Olivia Judson joins Sheila to discuss whether we could learn anything from the humble fruit fly. 'Dr Tatiana's Sex Advice to All Creation' is published by Vintage Books; ISBN: 0099283751.
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