Evolution is constantly adapting us to our environment, making species more suited and better equipped to survive in their natural habitat. So why did our distant ancestors have better teeth than we do? And what can the study of our gnashers tell us about our diet, our oral health, and our very origins as a species? Professor Peter Ungar is a Paleoanthropologist, and author of 'Evolution’s Bite: A Story of Teeth, Diet, and Human Origins'. He joins Jonathan to discuss what teeth can tell us. First Aired 28/7/2018

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