Previously unknown species, which has been named Diluvicursor pickeringi, uncovered in 113-million-year-old rocks in south-eastern Australia.
Black is the sexiest colour for the super-black bird of paradise
The animal's specialized teeth and large size suggest it was capable of eating plants, as well as small vertebrates.
The world is getting warmer each year and humans are to blame.
Nasa's images shared on Instagram offer a bird's eye view of what is happening in some parts of the country.
Warm ocean waters and rising CO2 levels are likely to disturb the food chain.
Sand dunes in the Algerian town of Ain Sefra were blanketed by a 16-inch thick layer of snow. This was only the third snowfall to be recorded in the town.
More than 99% of green sea turtles coming from the northern Great Barrier Reef are females, study finds.
Choose one of these 24 stunning animal pictures as the winner of the Wildlife Photographer of the Year People's Choice Award.
Titanoboa cerrejonensis is the largest snake ever known to have existed and an early ancestor to today's boa constrictors.
Intriguing behaviour of raptors is widely known among Australia's indigenous people and is often represented in sacred ceremonies.
Scientists found that while in the Arctic region the sinking was over 1mm a year, in the south Pacific it was 0.4mm a year.
A brave dog named Red survived 10 days in the on Preseli mountains after getting 'disoriented' and disappeared during a walk.
January 5 marks National Bird Day - but how much do you know about our feathered friends? Take our quiz and find out.
Animal protection groups and local authorities have urged people to shelter their pets indoors during the icy weather.