Nugget of Knowledge: At your fingertips

Fingerprints are not identical on twins

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YOUNGSTOWN, Ohio (WYTV) – In pre-Christian times, people believed that good spirits lived where things crossed — you bury vampires and zombies at crossroads.

A wish made on a cross was a way of “anchoring” the wish until it came true.

You use a friend to make the wish with crossed index fingers.

Over centuries, this was simplified so that a person could wish on his own. That’s the origin of crossing your fingers.

Then you needn’t bother to actually cross fingers, just say “Keep your fingers crossed.”

The pattern of loops and whorls on your fingerprints was fixed three months before you were born.You can scar your fingerprints with a cut or temporarily lose them through abrasion, acid or certain skin conditions, but fingerprints lost in this way will grow back within a month.

As you age, skin on your fingertips becomes less elastic and the ridges get thicker. This doesn’t change your fingerprint, but it’s harder to scan or take a print from it.

Identical twins do not have identical fingerprints, not even before birth.

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