EU leaders are split over climate aid, but agree a deal over the Lisbon Treaty, at the start of a summit in Brussels.

Why do some of us hate fat people so much?

The dilemma facing young people born in the wrong body

A selection of your photos on the theme of Autumn

The dance of the weedy sea dragon, one of the most elegant courtship rituals in the animal kingdom, is filmed by a BBC crew.

Nasa's new rocket flies - but where is it going?

Banning trade in Atlantic bluefin tuna is justified by the extent of their decline, scientists advising fisheries regulators suggest.

Women who carry excess weight on the hips, and apple-shaped men carrying it on the waist, risk blood clots, say experts.

A period of careful eating and regular exercise can stave off diabetes for a decade, a study suggests.

A huge explosion known as a gamma ray burst is confirmed as the most distant cosmic event seen from Earth.

An inventory of species threatened by climate change

The US space agency has launched the Ares I-X, a prototype rocket designed to replace the ageing shuttle.

A top international HIV/Aids expert tells the BBC the epidemic in Russia is now out of control.

Starfish have a remarkable strategy to avoid overheating in the sun, according to new research.

How America was named by this map... and a pun

Look for Crinkly, a swan who survives despite a disability.

See and hear how Ethiopians save water in the desert

Rare birds in the UK have been faring far better than their more common counterparts over the last decade

An extract found in the curry spice turmeric can kill off cancer cells, scientists have shown in the laboratory.

An extract found in the curry spice turmeric can kill off cancer cells, lab scientists have shown.