Image for Evolution of sight

Evolution of sight

Duration: 07:00

Almost all animal life can see (96% of species have an eye), and at a molecular level, every eye in the world works in the same way. At the heart of all vision is a light sensitive pigment called rhodopsin.

Professor Brian Cox shows the stages of the evolution of the eye, from a primitive light sensitive spot, to a complex mammalian eye.

Available since: Wed 13 Mar 2013

This clip is from

Wonders of Life Learning Zone, Episode 2

2/2 Brian Cox explains how life is shaped by both the environment and the laws of nature.

First broadcast: 13 Mar 2013

Image for Episode 2 Not currently available on BBC iPlayer

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