A tree's leaves are one major marker that helps in ... Naturalist Roger Tory Peterson says that unlike the precise silhouette of birds, a tree is not so consistent in form or shape: "The beginner ...

Two physicists from the Technical University of Denmark have found that leaf shape is a determining factor in the distance ...

The thrill of correctly identifying trees can be enhanced by properly collecting leaves to make a tree leaf collection and then mounting them in an exhibit. Some properly prepared collections have ...

Scientists made fake leaves and dropped them in water tanks to observe how different shapes move as they sink.