THE STORY of how the zebra got its stripes has been a mystery for centuries – but scientists may finally have the answer. The black-and-white beasts evolved their distinctive coat to help them ...

A zebra's stripes, a seashell's spirals, a butterfly's wings: these are all examples of patterns in nature. The formation of patterns is a puzzle for mathematicians and biologists alike. How does ...

NASA's twin Van Allen Probes spacecraft have shown that high-energy electrons in the inner radiation belt display a persistent pattern that resembles slanted zebra stripes.