Science
Why Do Fingers Wrinkle in Water?
Why do our fingertips become wrinkly after a long bath or swim?

The short answer
Wrinkled fingers are not simply caused by skin filling with water.
Let’s explore
- Wrinkled fingers are not simply caused by skin filling with water.
- Our nervous system helps narrow blood vessels under the skin, creating the familiar wrinkled pattern.
- Scientists think this response may help improve our grip on wet objects.
Quick Quiz
- What is the short answer to “Why Do Fingers Wrinkle in Water?”?
- Can you explain one key fact in your own words?
- What new question would you like to explore next?
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