The wrinkly, wet hands that you get from sitting in the bath for too long may actually serve a purpose.
Scientists from Newcastle University have found that the wrinkles which appear on the skin can actually improve grip on wet objects.
The study saw participants taking a marble out of water with and without the prune-like skin.
Author Dr Tom Smulders, who is publishing the paper in Biology Letters, said: "We have shown that wrinkled fingers give a better grip in wet conditions. It could be working like treads on your car tyres, which allow more of the tyre to be in contact with the road and gives you a better grip.
"Going back in time, this wrinkling of our fingers in wet conditions could have helped with gathering food from wet vegetation or streams. And as we see the effect in our toes too, this may have been an advantage as it may have meant our ancestors were able to get a better footing in the rain."
Participants were able to grip faster when they had wrinkled hands but it made no difference when picking up dry objects.
Dr Smulders said: "Our initial thoughts are that this could diminish the sensitivity in our fingertips or could increase the risk of damage through catching objects."
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