They evolved about 1.6 billion years ago when one cell, incapable of using the ... in vastly different lineages. The highest leaves win, and so trees tend to evolve to be as tall as possible ...

The colours are absolutely stunning. When leaves are green they are working as organs for the tree. The green colour comes from a part of the cell called chlorophyll, which processes sunlight into ...

Thank you all so much for your continued interest in Fossil Atmospheres and please consider visiting our Zooniverse site to help with leaf cell analysis. Ginkgo trees evolved before the dinosaurs, ...

Read Dr. Don Leopold's Guide to Fall Colors in Upstate New York with color images of dozens of trees and shrubs. Every autumn we revel in the beauty of the fall colors. The mixture of red, purple, ...