Scientists believe that processing your vision uses around half of the brain’s power.

Scientists believe that processing your vision uses around half of the

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Nerve impulses travel to and from the brain at around one hundred and

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The average ejaculation releases around three hundred million sperm

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Eyes are the second most complex organ after the brain

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Amazingly, you can actually smell in stereo – signals from each nostril

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The farthest you can see with the naked eye is 2. 4 million light years

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Eyes began to develop 550 million years ago. The simplest eyes were