Leonardo da Vinci’s sketch of a tree illustrates the principle that combined thickness is preserved at different stages of ramification. The math that describes the branching pattern of trees in ...

Forests reveal a fascinating pattern called crown shyness. Trees deliberately leave gaps between their branches. This spacing ...

Terrestrial laser scanning data show that trees move their branches in a diurnal pattern, settling down for the night -- as if falling asleep. Changes in the water status of leaves and branches causes ...

Across cities and suburbs, a curious pattern keeps turning up in aerial photos and field surveys alike: trees that stand closest to cell towers are often the ones that look the sickest. Their crowns ...