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14th August 2018
06:15pm BST

"These findings support the hypothesis that water-induced finger wrinkles improve handling submerged objects and suggest that they may be an adaptation for handling objects in wet conditions".
Although it was previously thought that the wrinkled effect was due to water passing through the outer layer of the skin, apparently the wrinkles are actually due to the body's autonomic nervous system, which controls breathing, heart rate and perspiration.
Blood vessels then constrict below the skin, lending to the wrinkled appearance.
According to Smulders, an evolutionary biologist, wrinkled fingers could have helped our ancestors to gather food in wet conditions while wrinkled toes would have allowed for a better grip in rainy weather.
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