Thread: Science Science is Cool....
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Old 08-19-2013, 07:57 AM   #960
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Quote:
Originally Posted by Discuss Thrower View Post
By that logic we're inferior to dogs because we can't see UV spectrum, right?


Rack city, TRICK.
Dogs can't see the UV spectrum either. And dogs are also red green colorblind. Canine vision is pretty similar to ours other than the red green areas.

Reindeer are actually the only mammals that can see the UV spectrum. They evolved that ability from living in snow. If they didn't have that ability they would develop snow blindness.

Quote:
"We discovered that reindeer can not only see ultraviolet light but they can also make sense of the image to find food and stay safe. Humans and almost all other mammals could never do this as our lenses just don't let UV through into the eye. In conditions where there is a lot of UV – when surrounded by snow, for example – it can be damaging to our eyes. In the process of blocking UV light from reaching the retina, our cornea and lens absorb its damaging energy and can be temporarily burned. The front of the eye becomes cloudy and so we call this snow blindness. Although this is normally reversible and plays a vital role to protect our sensitive retinas from potential damage, it is very painful."

http://io9.com/5805792/reindeer-are-...raviolet-light
Lots of other creatures can see UV though.
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