Hiking provides immense cardiovascular and musculoskeletal benefits, but being in nature while participating in the activity might be the greatest advantage of all. When hiking on challenging terrain, ...

But Why is a show led by kids. They ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end ...

Teeth are categorized by their placement and function. Sharper teeth near the front of your mouth tear food into smaller pieces, while flatter teeth at the back of your mouth grind the food down.

For more on lying check out our podcast, “Overheard at National Geographic.” Listen here. This story originally published in the June 2017 issue of National Geographic magazine. In the fall of 1989 ...