Scientists have discovered a tortoise belonging to a species thought to have died out 100 years ago.
Pound-for-pound, the Galapagos large ground finch has a bite 320 times stronger than Tyrannosaurus rex.
For the first time ever, it has been possible to directly observe one species evolving in to another.
Scientists have revealed the discovery of a new species of giant tortoise on the Galapagos Islands.
Where once there were just 15 Espanola giant tortoises left there are now more than 1,000.