Third of Earth`s organisms live in rocks, sediments

A third of the Earth`s organisms live in our planet`s rocks and sediments - and the amount could even be greater undersea than what we find on the surface, scientists say.

Cockroaches essential to our planet for converting nitrogen into fertiliser

Indian origin biologist has said that cockroaches are essential to the survival of our planet`s delicate ecosystem.

Dinosaurs `lived 9 mn years earlier than thought`

Dinosaurs roamed the Earth almost nine million years earlier than previously thought.