Science proves early human ancestors ate bark and leaves - now known as medicinal herbs

Analysis of food trapped in the teeth of the two-million-year-old "southern ape" suggests it existed on a unique diet of forest fruits and other woodland plants.

Teeth from two individuals were analysed in the latest research, focussing on patterns of dental wear, carbon isotope data and plant fragments from dental tartar.

The evidence suggests the ape-like creature ate leaves, fruit, bark, wood and other forest vegetation.

http://www.bbc.co.uk/news/science-environment-18603558