The latest stories from the Science & Environment section of the BBC News web site.
Updated: 17 min 11 sec ago
Climate deal negotiators have been working through a third night in Paris, with those also attending including activists, journalists and scientists.
A German nuclear fusion experiment produces a special super-hot gas which scientists hope will eventually lead to clean, cheap energy.
Negotiators at the Paris climate summit aim to wrap up a global agreement on Saturday with the French hosts "optimistic" of a deal.
A seal with a deep neck wound may have to wait for treatment because vets do not want to approach him during the breeding season.
Film makers William Davies and Hereward Holland join a World Wildlife Fund expedition in Mongolia, to see what can be done to protect and conserve the snow leopard.
Humans may have to turn to insects as a major source of protein if political efforts to halt climate change fail.
Three important issues remain the toughest for UN negotiators working on a global climate agreement.
With agreement on a climate change deal still looking some way off, the BBC’s environment correspondent Matt McGrath explains how the conference is divided into many, often over-lapping, factions.
Paignton Zoo's 28-stone silverback Western Lowland gorilla, Pertinax, has had a root canal operation.
The high-pitched mating chirp of a group of crickets may have evolved from the insects impersonating predators, scientists say.
The United States has joined with a range of rich and poor countries at COP21 in an effort to secure a final agreement.
A rare Philippine eagle chick has hatched in captivity, giving conservationists hope for the critically endangered bird.
First Briton in space, Helen Sharman, on the the first official UK astronaut mission.
The world's first litter of "test tube" puppies has been born, paving the way for conserving endangered breeds and boosting efforts to fight human diseases, US scientists say.
US scientists unveil first litter of puppies born through in-vitro fertilisation (IVF).
Ministers issue the latest draft of a climate change agreement, at the climate change summit, as Rebecca Morelle explains
A white fossil held in a Washington museum since the 1920s is reassessed and found to be from a 15-million-year-old sperm whale cousin with enormous teeth.
Scientists think they can now explain the mysterious bright spots on Ceres, the largest object in the asteroid belt between Mars and Jupiter.
The European Space Agency signs a 350m-euro contract with Airbus to build a spacecraft to investigate Jupiter and its icy moons.
A critical new draft text is published at UN talks as the deadline looms for a global climate deal.