The latest stories from the Science & Environment section of the BBC News web site.
Updated: 1 hour 9 min ago
Cockatoos learn to make and use tools when shown by another bird, research reveals.
Helen Howard started a snail farm in her spare bedroom and allotment seven years ago - now she sells to restaurants and private chefs.
A bid to safeguard endangered wildflower meadows has backfired, according to an unpublished report by the watchdog Natural England.
Two US men who spent three decades in prison for rape and murder, one on death row, are released after new DNA evidence proves their innocence.
Neuroscientists discover that primate brains show consistent differences according to their social status
The Rosetta probe is about to begin the manoeuvres that will take it properly into orbit around Comet 67P/Churyumov-Gerasimenko.
A global military intervention is needed to curb the largest ever Ebola outbreak, according to the medical charity Medecins Sans Frontieres.
A scheme to vaccinate badgers against bovine tuberculosis in a bid to tackle the disease in cattle is launched by the government.
African farmers face 'failed seasons' risk as a result of being overwhelmed by climate change, warns a status report on the continent's agriculture.
David Cameron may have made himself a hostage to fortune when pledging to lead the greenest government ever in 2010.
Would banning high-power appliances actually save energy?
First report from Europe's new quake-watcher
Five gecko lizards sent into orbit on a Russian space satellite as part of a sex experiment have all died, the Russian space agency says.
Corals stir up the water, creating vortices that draw in nutrients and drive away waste, research reveals.
Watching action films could make you more likely than other TV programmes to pile on the pounds, according to US researchers.
Water voles end 20-year absence in Scottish Highlands
Don't get suckered, Mr Vacuum Cleaner tells people trying to beat new EU rules.
An engraving found at a cave in Gibraltar may be the most compelling evidence yet for Neanderthal art.
African ministers and business leaders gather in Ethiopia to consider ways to trigger a green revolution and improve the continent's food security.
Melting ice is fuelling sea-level rise around the coast of Antarctica, a new report finds.