There's only a handful of animals on earth that go through menopause, where females get to hang up the ovaries and enjoy a change of life.

So, why have we (humans, chimps and some toothed whales) established a sexual retirement of sorts? What is everyone else missing out on?

Featuring:

• Associate Professor Kevin Langergraber, Primatologist, Arizona State University.
• Charli Grimes, PhD student, University of Exeter.

Production:

• Belinda Smith, Reporter/Producer. 
• Ann Jones, Presenter/Producer.
• Petria Ladgrove, Producer.
• Additional mastering: Hamish Camilleri.

This episode of What the Duck?! was produced on the land of the Wadawarrung, Wurundjeri and Kaurna people.