BBC

A public appeal to find a second rare left-coiled snail succeeds

Recent centuries have seen a big jump in the rates of erosion in the iconic chalk cliffs on England’s south coast, a new study finds.

Life in the southern hemisphere appears to have recovered more quickly than expected from the asteroid strike that wiped out the dinosaurs.

The European Space Agency’s director general says he expects to have at least an interim report on the Schiaparelli crash within the month.

Concerns over a Trump presidency are set to dominate the start of global climate talks in Morocco.

A beach in Siberia has been transformed by naturally occurring giant snowballs.

Planet Earth II's camera crew came back from filming to find an unwanted visitor.

The Canadian military probes a mysterious Arctic pinging sound, officials tell the BBC.

An earthworm named Dave wriggles into the record books as the largest ever found in the UK - measuring a whopping 40cm (15.7in).

Researchers apply for a licence to carry out a trial of a genetically modified wheat crop in a small field in Hertfordshire.

The Paris agreement on climate change has come into force, with efforts due to continue next week on the way ahead.

Inventor Sir James Dyson is setting up his own technology institute to tackle the shortage of engineers.

Given the complexity of antibiotics resistance, what should we do to tackle the problem?

A rare species of frog is discovered which startles predators by revealing its bright orange groin.

Ebola dramatically adapted to infect human tissues with ease in the first few months of the Ebola outbreak.

Authorities in Florida are releasing sterile flies in a bid to stamp out a flesh-eating livestock disease that has returned to the US for the first time in 30 years.

China has launched its biggest rocket to date - the Long March 5.

An analysis of national plans to cut carbon says they are still way above the levels needed to keep the rise in global temperatures under 2C.

Engineers finish assembling the telescope that will succeed Hubble. James Webb, as it is known, is now on track to be launched two years from now.

Thousands of school children have been helping to carry out experiments to see whether seeds that have been in space grow as well as those that have stayed on Earth.