We have all have unseen, harmless microscopic creatures living in our eyelashes.

We have all have unseen, harmless microscopic creatures living in our

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The average ejaculation releases around three hundred million sperm

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

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The average person blinks 12 times a minute (bet you just blinked!)

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The retinas inside the eye cover about 650 square mm and contain 137