Earth history

Articles in ‘Earth history’

Age of the Amazon

July 29th, 2009

Scientists at the University of Liverpool have discovered that the Amazon river is around 11 million years old and took its present form some 2.4 million years ago. Eureka

Why autumn is different in Europe to Asia and America

July 21st, 2009 Trees in Europe tend to produce yellow leaves, while those in America and eastern Asia produce red leaves. Nobody knew why, but scientists have now published a theory that could explain the difference. They think that red-leafed trees in America and Asia only exist because they and their insect pests managed to survive a series of ice ages long ago. BBC