The latest stories from the Science & Environment section of the BBC News web site.
Updated: 2 hours 20 sec ago
Monday will see an international team of scientists set sail for the mid-Atlantic on a quest to sample microorganisms living deep in the ocean floor.
EU aid aimed at curbing the illegal timber trade was poorly managed, say auditors, who are urging better targeting and monitoring.
The Home Office's annual statistics show a 6% drop in animal experiments in the UK - but the office has changed the way it collects these figures.
What do we - and don't we - know?
US scientists perform a macabre set of experiments to bolster their controversial argument that fist fights shaped the human hand.
Scientists say a new species of giant tortoise has been discovered on the Galapagos Islands off Ecuador.
A new study adds crocodiles to the list of animals that apparently sleep with one brain hemisphere at a time.
Scientists say they have identified a new species of giant tortoise on the Galapagos Islands in the Pacific.
A team from Delft University in the Netherlands has won a 3,000km (1,800 mile) solar car race in the Australian outback.
A leading expert tells the BBC that rapid rates of warming will see permafrost in parts of Alaska start to thaw by 2070.
Environment correspondent Matt McGrath explores a US Army tunnel through permafrost in Alaska.
Low-carbon electricity, not gas, is the cheapest way to keep lights on and meet carbon targets, says the government's climate advisory panel.
The Cuban government, working with a US environmental group, announces a long-term plan to protect shark populations swimming in its waters.
The robot rover that Europe is building to send to Mars is likely to be targeted at an equatorial region known as Oxia Planum.
EDF Energy reaches an agreement with China's CGN for a new nuclear power plant at Hinkley Point in Somerset.
Volunteers have mapped the UK coastline to identify the damage by industrial development.
At MIT's Media Lab, scientists are working to discover the fabrics and material that will influence the future.
A foal born as a result of IVF could be the first in a new lifeline for rare, traditional British breeds that are on the verge of disappearing.
A drug-resistant malaria parasite that is spreading across South East Asia can also infect different mosquito species in Africa, laboratory experiments show.
Scientists discover a layer of very well-organised fat molecules on the belly scales of snakes, which reduce friction and could be the key to safe slithering.