Butts. What are they good for?

Two million years ago, our ancestors had tiny ape-like butts. Then something strange happened.. our butts grew bigger. Butt, why?

It turns out humans aren’t the only primates whose butt took a bizarre evolutionary turn.

These peaches have a lot to answer for.

Featuring:

Professor Daniel Lieberman, Harvard University, US.

Professor Jo Setchell, Durham University, UK.

Dr Peter Bishop, Harvard University, US.

Lauren Thornton, University of Sunshine Coast.

Production:

Ann Jones, Presenter / Producer.

Petria Ladgrove, Producer.

Additional mastering: Russell Stapleton.