Your skin carries an oil on its surface that keeps it from wrinkling. The oil can replenish. However, spending too much time in the water can wash the oil away and the skin is susceptible to being pruned.
...However, that is not supported by the evidence. People who's nerves are severed do not experience "pruning" in water, disproving popular myth that water absorption is a factor.
It appears to be an involuntary "choice" by the body in reaction to water. Perhaps to improve "grip" during wet conditions.
The "fancy" name for fingers and toes is digits.
what is the various of the fingers and toes labeled
your fingers and toes.
you have five fingers and toes to help you balance.
Proximal and Distal
You have natural oils on your skin that at first repels the water. But if you are in the water long enough, the oils disappear and leave your fingers and toes wrinkled. They have absorbed water but it will go away soon after you dry.
The Greek word for fifteen fingers or toes is Pentadecadactyl.
fingers, toes and butt fingers, toes and butt
Ok.... I have 10 toes and 8 fingers and 2 thumbs.
An acanthostega has about 8 fingers and 6-7 toes.
Fingers and toes are no doubt composed of cells and tissues.
It has to do with the the way your fingers are made. The tips of fingers and toes are covered by a tough, thick layer of skin. When they are soaked for a prolonged period it absorbs water and expands. However, there is no room for this expansion on fingers and toes, so the skin buckles and you get wrinkles.