UN wildlife negotiations begin on banning the trade in bluefin tuna and permitting sales of ivory at a two-week summit in Doha.

Nasa Moon astronauts tell the BBC President Barack Obama's decision to cancel the US lunar programme is "catastrophic".

Songbirds on the US east coast are becoming smaller, a trend thought to be driven by climate changes.

The mechanism by which thalidomide causes birth defects including malformed limbs is revealed by scientists.

Fifty-one decapitated skeletons found in a burial pit in Dorset were those of Scandinavian Vikings, scientists say.

Eleven rare Siberian tigers die at a zoo in north-eastern China, raising fears over treatment of captive animals in the country.

The largest meat-eating plant in the world is designed not to eat small animals, but small animal poo, scientists discover.

Researchers in Edinburgh say they have solved the mystery of why some chickens hatch out half-male and half-female.

Japan voices opposition to a proposed ban on international trade in bluefin tuna, after the EU backs the plan.

The UN secretary general asks the world's leading science academies to review the UN's climate science body.

A zebra at Zurich Zoo appeared doomed when visitors saw its head in the mouth of a hippo, but it was only cleaning its teeth.

Scientists say they have been able to tell which past event a person is recalling using a brain scan.

Japan's home fuel-cell tech to take on Europe

Learning from bears' love of telegraph poles

Will review of UN climate change body be unbiased?

The waste fuel for your motor that won't cost a lot

Can all species live side by side in unique ecosystem?

The dawning age of the agricultural automatons

Europe is set to release its first non-native "biological control" species to curb the spread of Japanese knotweed.

Commercial and political interests are abusing historical whaling rights of indigenous people.

The European brown bear's love of electricity and telegraph poles is helping scientists gain new insights into its behaviour.

Mystery surrounds the deaths of 75 starlings which fell from the sky.

Deforestation has revealed what could be a giant impact crater in Central Africa, according to Italian scientists.

The eggshells of long-dead and extinct species are a particularly good source to find preserved DNA, researchers say.

The science spokesmen of the three main political parties cross swords on the issue of UK research funding.

The Large Hadron Collider must be shut down for a year starting in late 2011 to address design flaws, the BBC has learned.

A never-before-seen reaction in nanotubes could make for batteries that pack a mighty punch, say researchers.

EU nations decide to support a ban on international trade in Atlantic bluefin tuna until stocks recover.

Research shows some EU countries "import" about a third of their carbon emissions from developing countries.

A plant-eating predator that preys on aggressive superweed Japanese knotweed is to be given a trial release in England.

One of our closest primate relatives, the bonobo, prefers to share its food rather than dine alone, scientists report.

The UK Met Office says evidence that human activity is causing climate change is stronger now than in a 2007 assessment.