Mammalian lungs are branched networks containing thousands to millions of airways arrayed in intricate patterns that are crucial for respiration. How such trees are generated during development, and ...

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 ...

Do you have a tree with a dead, damaged, badly placed or rotting branch that needs to be pruned off? To avoid danger to yourself and damage to the tree, plan carefully before you cut. “Wood is heavy,” ...