Why do zebras have stripes?

After evolving from horses some two million years ago, zebras earned their stripes. But why? A team of scientists has found part of the answer.
Haboob - dust storm

What is a dust storm/haboob?

Watching a dust storm (or haboob) blow in, you can imagine it will leave a swath of nothingness in its wake. Fortunately, it's not like that at all.

Is a bird the right pet for you?

Are you ready for a pet bird? Whether you're thinking of a little parakeet, a large parrot or something in between, here are some things to consider.

A super stellar gallery of galaxies

Our galaxy, the Milky Way, is typical: it has hundreds of billions of stars, enough gas and dust to make billions more stars, and at least ten times as much dark matter as all the stars and gas put together. An...

Leaf crafts for fall

Here are a few creative ways to use those autumn leaves in simple leaf crafts.