Wonders of Life

BBC Two Northern Ireland HD

4:15 PM to 5:15 PM

Tuesday 12 November

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Professor Brian Cox travels across America encountering a diverse range of creatures that reveal how the senses evolved. In Kentucky, he explains how microscopic single-celled organism the paramecium can orientate itself through touch alone, and that catfish build a picture of their murky river environment through the taste buds that cover their bodies. Investigating the eyes of octopuses, Brian finds a link between the ability to process sensory data and intelligence, which may be evidence that humans evolved large brains in order to make sense of what they could see