SEEING COLOR

Living in a world full of colours, we assume that all creatures see it in the same way we do. But this is not the case. Whales see the world in black and white; cats and dogs cannot distinguish between red and orange, but are able to discern 25 shades of grey. And the world that surrounds birds and insects is a thousand times more colourful than ours. This film looks at the variety of eye structures, including those able to see ultraviolet and infrared rays; the amazing nuances, secrets and mysteries of light perception; and even why the sky seems bluer, the grass greener and girls’ lips redder when we are young.