The latest stories from the Science & Environment section of the BBC News web site.
Updated: 1 hour 9 min ago
Can four felines live happily under the same roof?
The Nobel Prize for physiology or medicine has been awarded to three scientists who discovered the brain's "GPS system".
The New York Times apologises for a cartoon on India's Mars Mission following readers' complaints that it mocked India.
New cracks found in the core of the Hunterston-B nuclear reactor in Scotland could threaten operator EDF's plans to extend the lives of some power stations.
Many subtle DNA changes could explain why some people are taller than others, according to the largest ever study of the genetics behind height.
The deeper half of the ocean did not get any hotter in the last decade, but warming of the surface layer since the 1970s has been seriously underestimated, according to two new studies.
Neha Bhatnagar reports from a demonstration in Nairobi, as protests are held in over a hundred cities across the world calling for an end to the trade of ivory and rhino horns.
Why connecting wheelchairs to the net could save lives
New research published by the Natural History Museum has shown that it is possible to culture cells from butterfly wings to produce iridescent colours in the laboratory.
The European Space Agency releases a shape model of Comet 67P/Churyumov-Gerasimenko, which, among other things, allows enthusiasts to print their own 3D version of the "ice mountain".
At the Paris Motor Show, Theo Leggett looks at the Peugeot 208 Hybrid Air - a concept car that brings a new meaning to the term "gas guzzler".
Conservationists have revealed the latest weapon in their fight to preserve and restore threatened heath land in Dorset.
The origin of the Aids pandemic has been traced back to 1920s Kinshasa, in what is now the Democratic Republic of Congo, scientists say.
Meet Robinson - the loneliest monkey in Africa
Japan's Toyota says it will prove its critics wrong again
As many as 100 people in Texas are being checked for exposure to Ebola after a man was diagnosed in Dallas with the disease, health officials say.
New satellite data reveals thousands of previously unrecognised mountains on the bottom of the world's oceans.
British scientists are hoping robots will be able to give the most detailed picture yet of life deep below the waterline. The BBC's Science Editor David Shukman reports
A fleet of marine robots is being launched in the largest deployment of its kind in British waters.
How do domestic cats really see the world?