Have you ever noticed that your fingers and toes get wrinkled when you’ve been soaking in water for a while?

BIOLOGY
His artworks showed the wonders of evolution to a wide audience.
Our ears share the burden of listening equally.
The much-maligned bird is a lot more intelligent than people think.
This self-soothing behavior is actually a pretty effective technique for temporarily calming pain signals to the brain. Here's how it works.