Written-in-stone

Written in stone

 We know that life has evolved over time because rocks contain evidence of different life forms that thrived in the distant past. These link with a vanished world are called fossils. Typical fossils preserve the form of bones,teeth, and shells.





By comparing them with those of familiar animals, scientists can piece together the story of evolution. Every new the picture clearer.

Fossil hunters 

   The scientists who study fossils are called palaeontologists. They are experts at finding, identifying, and preserving fossils. They can also work out how old each fossil is,and how it fits in with the story of evolution. They often have only fragments to work with, but a single bone can be a crucial clue.
Solving the puzzle

  Fosils can be impressive, but even the biggest and best preserved are just a start. To make sense of a group of fossil bones, palaeontologists must work out how they fitted together, what the living creature might have looked like, and how it might have behaved.