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Department of Psychology

This week on the BBC Radio 4 programme, A History of Ideas, Melvyn Bragg and his guest presenters are investigating the question: What makes us human?

Today's presenter, philosopher Barry Smith, asks whether language is unique to humans and he talks to Professor Nicky Clayton to find out how human language differs from communication between other animals - in particular, corvids.

Visit the Radio 4 website to listen to the programme: http://www.bbc.co.uk/programmes/b04ykk50.