The latest stories from the Science & Environment section of the BBC News web site.
Updated: 6 min 39 sec ago
Professional footballers have worryingly poor teeth that could be affecting their performance on the pitch, say dentists.
Cockroaches are usually associated with dirt and disease, but they are inspiring the design of new robots, prosthetic limbs and antibiotics.
As the International Space Station celebrates 15 years of astronauts living on board, Chris Hadfield tells the BBC what life is like.
The International Space Station is marking the 15th anniversary of humans being on board.
Ten long-finned pilot whales are found stranded on a beach in Calais, with three surviving and returning to sea.
BAE Systems buys a 20% stake in a company developing a radical engine that could propel aircraft into space.
An "extremely well preserved" family burial vault is discovered "accidentally" at Gloucester Cathedral.
Why don't people see the yeti any more?
A dig in Jersey yields a stash of hunter-gatherer artefacts, including engraved stones which may pre-date all known ancient art in the British Isles.
There is concern that England's only wild beavers have disappeared.
An asteroid called TB145 will pass within a few hundred thousand kilometres of the earth.
A new design for lithium-air batteries overcomes several hurdles that have stood in the way of this "next-generation" concept.
Marine wildlife experts believe dolphins attacked a young pilot whale which was found stranded on a beach in Skye.
The UN says the current climate plans from 146 countries represent a significant advance - but will not be enough to prevent dangerous warming.
BBC Click's LJ Rich looks at some of the best of the week's technology news.
Puffins and turtle doves are among four UK bird species now at risk of extinction, according to the latest revision of a global conservation database.
Senior Buddhists have called on world leaders to agree a new climate change agreement at a conference in Paris next month.
The Rosetta spacecraft discovers molecular oxygen in the cloud of gas surrounding Comet 67P prompting a rethink on the origins of the Solar System.
Venus, Jupiter and Mars can be seen from the Earth's skyline this week in a rare grouping of the three planets.
Authors of a study on lion populations believe many are in rapid decline and the animal should now be classified as endangered in parts of Africa.