Our eyes are made up of over 2 million working parts.

Our eyes are made up of over 2 million working parts

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The human eye weights approximately just under an ounce and is about an

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The heart is the only muscle which doesn’t take its signal from the

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Both sperm and egg only contain half the DNA required to create a human

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Eyelashes have an average lifespan of five months

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Red-eye in photos is caused by light from the flash bouncing off the

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When you blink, it lasts for about one tenth of a second