Invasive Burmese pythons are the likely cause of a severe decline in mammals living in Florida's Everglades region, a study suggests.

Gorillas bare their teeth in a playful "grin" to reassure one another as they play, scientists discover.

Hundreds of Bolivian protesters arrive in La Paz to demand the government resume work on a controversial road through Amazon rainforest.

Wales is on the right path towards tackling climate change but more work needs to be done by the Welsh government to target additional emissions, a report says.

Skin cells have been converted directly into cells which develop into the main components of the brain, by researchers in California.

Seven chemical company officials are detained over industrial waste that polluted a river in China's southern Guangxi region, state media reports.

The UK's only polar bear on public display is weighed by staff at the wildlife park in the Highlands where he is kept.

A Spanish archaeologist has snapped the most-detailed pictures ever seen of an "uncontacted" tribe in the Amazon.