This story appears in the October 2012 issue of National Geographic magazine. We have all held leaves, driven miles to see their fall colors, eaten them, raked them, sought their shade. Since they are ...

JavaScript is disabled in your web browser or browser is too old to support JavaScript. Today almost all web pages contain JavaScript, a scripting programming language that runs on visitor's web ...

If you've been wondering why Tracker slimmed down its cast between its second and third seasons, the show's most recent episode, "Eat the Rich," has proven its point beyond a shadow of a doubt. It's ...

Leaf development describes the coordinated morphogenesis process by which a leaf is formed, and grows to become a mature photosynthetic organ. It starts from the initiation of a primordium in the ...

Raking and disposing of leaves is more than a chore. It can be a very demanding exercise. Although exercise is good for you, this workout can be full of repetitive motions. Raking leaves may seem ...