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Nocturnal Vision and Evolution

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posted on Aug, 4 2012 @ 04:04 AM
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What species on earth wouldn't benefit greatly from night vision? Why would evolution give this ability to some, but not others?

Are there rules buried within DNA that goes something like, if a species walks upright it is disqualified from getting nocturnal vision?




posted on Aug, 4 2012 @ 04:21 AM
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that's an interesting question, it makes you think if the inuits have lived in the arctic so long how come they haven't developed nocturnal vision? maybe if you get any prolonged period of sunlight at all.. whether its every few months or every day there might be no need for your body to develop something like that.



posted on Aug, 4 2012 @ 05:12 AM
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Predators are cunning and skillful and tend to have at least a decent eyesight at night. We have decent eyesight at night compared to others. Prey tend to sleep at night for some reason and can get eaten. However, if you just want a particular prey then you may want to hunt during the day, so perhaps it has to do with what kind of prey is available in the environment.

The ones with the mutations survive and have a chance to pass that mutation on to their offspring and so on and so on. The mutation grows and overtime they may be exceptional at what they do, while the earlier breed dies off. I hope this makes sense.



posted on Aug, 4 2012 @ 07:15 AM
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reply to post by POPtheKlEEN89
 


Well, evolution doesn't work that quickly. I mean, whales didn't suddenly just jump into the sea, lose their fur and grow big noses to see with... but they came from land.. after leaving the oceans in the first place.

It's a little longer than a few hundred thousand years..




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