WHY DO WE HAVE NAILS ON FIN­GERS AND TOES?

Science Illustrated - - ASK US -

The func­tion of the nails is to pro­tect the toes and fin­gers and to in­crease the sen­si­tiv­ity of the many sen­sory nerves – es­pe­cially in the fin­ger­tips. When we touch an ob­ject, the nail func­tions as a kind of coun­ter­weight, which in­creases the pres­sure on the sen­sory nerves slightly, caus­ing them to send more nerve sig­nals to the brain.

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