Scientists investigated what makes the skin on fingers wrinkled after being soaked in water. They were able to relate it to internal blood pressure but could not confirm what use this phenomenon might have. Aired Jan. 11, 2013. [3:25]

A discussion of a video about scientific research into what makes the skin on fingers wrinkled after being soaked in water. The scientists were able to relate it to internal blood pressure but could not confirm what use this phenomenon...