dimecres, 22 d’abril de 2009

Cold spelt end of dinosaurs

The experts always said that the dinosaurs extinction has caused to the fall of an asteroid 65 million years ago in the Cretaceous period. But a group of Australian experts have discovered that many dinosaurs could survive but was definetly cold temperature what killed all the survivers of the asteroid.

"People have suggested that climate change is the reason dinosaurs started to decline" - Dr Angela Milner, Natural History Museum

But maybe it can be the answer of his final extinction like australian experts afirm because they have confirmed with dinosaurs rests where there are marked temperature changes.

extinction - extinció
survive - sobreviure
Cretaceous period - període cretàcic

http://news.bbc.co.uk/2/hi/science/nature/2225779.stm