HUMAN ADAPTATION

When we spend a lot of time in water – in a bath, during a swim, or, in our case, paddle-boarding down the Severn– our finger tips and toes go wrinkly and look like raisins! Have you ever wondered why? Nobody is 100% sure but some scientists think the wrinkly effect might be a special response that humans have evolved to help our fingers grip onto wet objects and our toes get a more stable footing on wet surfaces. The patterns of wrinkles look like channels, which means water on these wet surfaces will drain more quickly through them so we can grab damp objects more easily.