
The BBC's Natural History Unit focuses on the planet's most advanced animal, beginning with a look at how man communicated before the evolution of language. Some gestures and expressions are so ingrained that we have not been able to erase them from our vocabulary.
This episode looks at our most fundamental activity - finding food, examining how humans exploit even the most inhospitable environments, and analysing how our origins as hunter-gatherers manifest themselves in the fast-food culture of the modern world.