Web edition: January 18, 2013
If you spend enough time in a pool or bathtub, the skin on your fingers shrivels like a prune. It happens on your toes, too. Some researchers now suspect that this wrinkling of our digits may offer a survival advantage.
The tread on a tire — a pattern of ridges and grooves — helps rolling rubber hold fast to wet pavement. The ridges direct water into narrow grooves, away from where the rubber meets the road. The tread on a shoe works in the same way. Now it appears that the grooves on a water-wrinkled finger does too.
T. Lewis. Pruney digits help people get a grip. Science News. January 9, 2013. [Go to]