Feb 212014
 

Cats and dogs

Animals have a sixth sense when they seem to be ‘spooked’ by nothing at all. But now scientists might have gone some way to explaining their strange behaviour as they have said that cats and dogs have ultraviolet vision – so they can see things that humans can’t.

According to the researchers that a variety of mammals, including hedgehogs and ferrets can see in ultraviolet – more than previously thought.

Humans can see in such detail because we have dense colour-sensitive cells (cones) in the retina that create detailed images in low levels of light.

Contributed By Sonia Narula

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