Finding the healthiest and most deeply-rooted tree in the family orchard, Khan then began grafting branches of other mango ...

This story appears in the December 2012 issue of National Geographic magazine. On a gentle slope above a trail junction in Sequoia National Park, about 7,000 feet above sea level in the southern ...

Elm trees grow big and beautiful, with tree branches that start tall on the trunk and spread outward like ... a Siberian elm over other varieties for many reasons. First, it's a little smaller ...