The amazon river the largest river in the world by volume and acounting for 1/5th of the globe's total river flow is 11 million years old.An international study has found that the South American river originated as a transcontinental river around 11 million years ago and took its present shape 2.4 million years ago. Prior to this publication the exact age of the Amazon river was unknown.The study has been published in the Geology journal.
