Northern South America

One of the largest turtles that ever lived prowled the lakes and rivers of northern South America from about 13 million years ago to 7 million years ago - and this car-sized freshwater beast was built for battle.

A US government weather forecaster on Thursday extended its outlook for the duration of El Nino, seeing the conditions as likely to continue into the Northern Hemisphere spring.

With the help of 200-million-year-old fossilised bones, scientists have identified a new species of dinosaur that was largely herbivorous and the size of a small dog.

A new theory on the cause of ice age says that the joining of North and South America changed the salinity of the Pacific Ocean and caused the growth of major ice sheets across the Northern Hemisphere 2.6 million years ago.

One of the largest turtles that ever lived prowled the lakes and rivers of northern South America from about 13 million years ago to 7 million years ago - and this car-sized freshwater beast was built for battle.

A US government weather forecaster on Thursday extended its outlook for the duration of El Nino, seeing the conditions as likely to continue into the Northern Hemisphere spring.

With the help of 200-million-year-old fossilised bones, scientists have identified a new species of dinosaur that was largely herbivorous and the size of a small dog.

A new theory on the cause of ice age says that the joining of North and South America changed the salinity of the Pacific Ocean and caused the growth of major ice sheets across the Northern Hemisphere 2.6 million years ago.