BBC documentary examining the evolutionary changes in the anatomy of humans and how these have helped - and hindered - us through history.
Presented by anthropologist Alice Roberts, the programme examines the physical traits that have enabled humans to become the dominant life force on the globe.
Everything from our posture and style of walking to the calibration of our thumbs is a product of our evolutionary history and has contributed to our survival and success.
However, physical attributes and behaviours that may have played a crucial role at a certain stage in history, can at others become a hindrance.
The programme also examines the problematic side of our anatomical legacy.