BBC

Monitoring wild birds on their long migrations may provide early warning of bird flu outbreaks, say scientists.

Banning the cooling gases currently used in refrigeration and air conditioning could save half a degree of global warming if a deal can be agreed in Rwanda.

Land Speed Record holder Andy Green reflects on the partnership the Bloodhound supersonic car project has forged with Chinese auto group Geely.

Four scientists are awarded the 2016 World Food Prize for crop work that delivers health benefits in developing nations.

The UK's official advisers have issued a sombre assessment of government plans to hold climate change at a safe level.

Scientists have reconstructed the "voicebox" of an extinct bird that lived at the time of the dinosaurs - and they say it honked or quacked like a duck.

A virus stole the gene coding for the poison of black widow spiders, scientists have found.

Scientists begin examining rocks drilled from the crater dug out of Earth's crust by the asteroid impact that killed off the dinosaurs.

President Barack Obama says the US will work with private companies on its plan to send humans to Mars in the 2030s.

A bottlenose dolphin is pictured flipping a porpoise into the air in a deadly attack.

Hundreds of thousands of householders in flood risk areas have failed to install basic protection against rising waters, insurers say.

Russian social media site launches platform for pets.

The European Schiaparelli probe will make its landing attempt on Mars prepared even to handle dust storms if that is what the planet throws up, the mission team says.

A huge drop in the number of butterflies in the UK is causing confusion among wildlife experts.

More than 100 scientists from 28 countries have called for global action to protect seagrass meadows, which provide food and shelter for fish, marine mammals and birds.

Aspinall Foundation's Port Lympne wildlife park in Kent has praised the arrival of two critically endangered black rhino calves in Tanzania.

Ten years ago an earthquake detected in North Korea turned out to be the country's first ever nuclear test. Seismologist Mika McKinnon explains how scientists tell the difference.

Astronaut Chris Hadfield discusses with Sarah Montague the importance of fear.

Conservative US blogger Matt Drudge suggests warnings over Hurricane Matthew are a government conspiracy, but critics say his comments are wrong and dangerous.

A humpback whale which was stranded on a sandbank off Australia frees itself after its calf was filmed apparently pushing her into deeper water.