Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic story traces back at least to Charles Darwin, the English naturalist who ...

This volume is based on the National Academy of Sciences' Colloquium on the Tempo and Mode of Evolution. The articles appearing in these pages were contributed by speakers at the colloquium and have ...

My first bicycle was not, in fact, a bicycle. I rode it in 1968, when I was two years old and as tubby as a bear cub. It had four wheels, not two, and no pedals: strictly speaking, it was a scooter.

If the Sun were very different, we wouldn’t be here. A shorter-lived star wouldn't provide the opportunity for humanity to develop, a star that was more erratic would regularly fry us, and stars in ...

Fashion trends come and go, but trying new looks to help you discover your personal style can last forever! And for many people, discovering their personal style starts by having a little fun with ...

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