The latest stories from the Science & Environment section of the BBC News web site.
Updated: 18 min 50 sec ago
Dolphin attacks on porpoises in Cardigan Bay leave marine scientists scratching their heads.
New Zealand approves mass poisoning to protect native wildlife.
Scientists looking for a new antibiotic are testing Welsh honey samples to see if they can provide a solution.
The UK government wants to establish a spaceport by 2018, with six of the eight potential locations sited in Scotland.
China has publicly admitted permitting the trade in skins from captive tigers, an international convention to protect endangered species hears.
A nature reserve becomes a stronghold for two rare butterflies, a wildlife trust says.
Scientists argue over the merits of a review which concludes that organic foods have higher levels of antioxidants and lower levels of pesticide residues.
Is there any science behind Planet of the Apes?
People in Guernsey are being warned to be careful on the beach after blue jellyfish were spotted off the coast.
A child born in the US with HIV and believed cured after very early treatment has now been found to still harbour the virus, doctors say.
The air quality in some of the UK's biggest cities is unlikely to meet EU standards before 2030 according to the government.
Rescuers have managed to free a young whale stranded for two days on a beach in Queensland, Australia.
Scientists patent a new way to make ultra-high resolution displays that are flexible and extremely thin.
Rosetta's comet quarry shapes up
Iraq warns the UN that Sunni militants have seized nuclear materials used for scientific research at a university in Mosul.
RSPB Scotland is urging people to discard unwanted plastic bags carefully after a rare bird was photographed with one caught in its beak.
The number of experimental procedures carried out on animals in Britain showed a small rise last year, despite a pledge by the government to reduce them.
Is the Higgs boson made up of other particles?
Ocean explorer Fabien Cousteau, grandson of Jacques Cousteau, has just resurfaced after spending 31 days living underwater.
Rescuers manage to refloat a young whale that has been stranded on a beach in Queensland, Australia, for two days.