The latest stories from the Science & Environment section of the BBC News web site.
Updated: 2 hours 48 min ago
Six suspected tiger poachers are shot dead in a gunfight with Bangladeshi police in the world's largest mangrove forest, the Sundarbans.
At least 170 people have been killed in Pakistan in this year's monsoon rains.
How far are they going in the battle to save India's strays?
Cuban people are getting round a lack of internet access by having a weekly delivery of content by hand.
Scotland is to ban the growing of genetically modified crops, the country's rural affairs secretary announces.
The data scrambling systems used by millions of web servers could be much weaker than they ought to be, say researchers.
The Panama Canal says it will temporarily cut the draft - or depth in the water - of ships allowed through because drought has lowered water levels.
Frances Oldham Kelsey, the Canadian doctor who played a central role in preventing thalidomide being distributed in the US, dies at 101.
There is now Pyongyang Time to add to Greenwich Mean Time, Eastern Standard Time and Lord Howe Standard Time. Time zones are as much about politics, diplomacy and rebellion as they are about... the time.
Physicists unveil a raft of new findings about neutrinos bombarding the Earth from above, below - and within.
Archaeologists want the public's help as they attempt to tackle what they describe as the "final frontier" - England's coastline.
Australian flights to and from the holiday island of Bali are halted due to a persistent volcanic ash cloud.
The BBC's Richard Westcott speaks to Prof Graham Braithwaite at The Accident Lab at Cranfield University, where air accident investigators are trained.
Would a hunting ban cost more lives than it saves?
Scientists warn that Nepal's devastating April earthquake failed to release all of the stress built up underground, increasing the chance of a quake further west.
A study of global fish populations suggests fast-growth fish species are more vulnerable to population collapses than previously thought.
Ocean experts have said a video modelling of ocean currents predicted that the wreckage of MH370 would be discovered near the remote French Indian Ocean island of Reunion.
Fishermen's leaders warn the creation of Marine Protected Areas around Scotland's coast could result in a modern-day "clearance" that would devastate small fishing communities.
Nasa's Deep Space Observatory satellite has captured composite images of the moon from a million miles away.
The animals scuttling mines in Australia