Tower's royal lions 'from Africa'
Two lion skulls found during excavations at the Tower of London originated in north-west Africa, researchers say.
Cloning treats mouse Parkinson's
Therapeutic cloning has been successfully used to treat Parkinson's disease in mice, research shows.
Sharks 'may predict the storms'
Sharks could be used to predict storms following research in Aberdeen by a marine biology student.
Green ideas for the UK Budget
The UK Treasury should break a "habit of a lifetime" and save green tax revenues for environmental solutions.
Antarctic shelf 'hangs by thread'
A huge chunk of ice starts breaking away from Antarctica in what scientists believe is new proof of global warming.
Study unlocks LatAm past
The arrival of European settlers triggered a dramatic shift in the genetic profile of Latin America's population, a study says.
S Asia in climate change 'crisis'
A Greenpeace report warns that South Asia faces a major human crisis if greenhouse gas emissions grow at present rates.
Research finds birdsong trigger
A hormone triggered by light hitting a brain cell causes birds to sing in the spring, scientists find.
Drug may help growth syndrome
Trials are about to begin of a drug that may help tackle a syndrome that causes excessive height.
Fish key to reef climate survival
As climate change and pollution threaten coral reefs, fish may be vital to their survival, scientists say.
Highland Diary: The remote munro
A BBC producer records a diary of his experiences while trying to film the spectacular wildlife living on the most remote munro in Scotland.
Methane found on distant world
A carbon-containing molecule has been detected for the first time on a planet outside our Solar System.
Space shuttle ending record visit
The US space shuttle Endeavour undocks from the International Space Station at the end of a record mission.
EU 'committed' to stiff CO2 cuts
Europe is still committed to ambitious cuts in CO2 emissions, the EU environment chief tells the BBC.
Cagey lions are just scaredy cats
Two timid lions are hesitant about making a public debut at Twycross Zoo, in Leicestershire.
Earthquake strikes northern Chile
A 6.1-magnitude quake hits northern Chile close to the border with Bolivia, the US Geological Survey says.
Mars is 'covered in table salt'
Mars appears to be dusted with the salt from huge dried up lakes, new evidence suggests.
Call for delay to biofuels policy
The UK's chief environment scientist deals a damaging blow to the government's biofuels policy.
Saturn moon 'hiding ocean'
Saturn's moon Titan may have a deep, hidden ocean, according to new data from the Cassini space probe.
Printing displays screen promise
Scientists demonstrate a printing technique to cheaply and quickly produce flat-panel computer screens.