Elbot is a computer program pretending to be a person. And this week it won a prize for coming closest to fooling people into thinking it was human. The BBC's Mark Lobel catches him in more a relaxed moment.

Climate change could help ensure the long-term survival of some of the world's most endangered species.

A look at what some of the bloggers in Saudi Arabia are writing about.

Tributes pour in for actor and philanthropist Paul Newman, star of Butch Cassidy And The Sundance Kid and The Sting.

Hollywood legend Paul Newman, star of films like The Sting and The Color of Money, dies at the age of 83.

One of Hollywood's most recognised actors Paul Newman combined acting with a passion for motor racing and a happy family life.

Fog, pavements and depression. The colour grey has dreary associations but a new exhibition recasts this ashen shade as one that suggests an intelligent perspective on the complexities of life.

Chameleons evolved the ability to flash bright colours to signal to others rather than blend in, scientists report.

US scientists say a beast found in Texas is not the goat-sucker of American myth after all, but simply a bald coyote.

The BBC's Masud Alam in Islamabad wants Eid to be a joyous occasion for his family.

Rohit Brijnath on why Shanthakumaran Sreesanth's on field behaviour could earn Indian cricket a bad name.

A London exhibition asks 25 international artists to imagine a memorial for the war in Iraq - a daunting challenge.

US civil rights groups call for borrowers from sub-prime lenders to be helped instead of having homes repossessed.

Allergic reactions to hair dye are increasing as more and younger people dye their hair, warn researchers.

For 30 years Garrison Keillor has hosted an old-style weekly variety show on American radio. As a movie of the show, A Prairie Home Companion, is released in the UK, Keillor tells why the spoken word can still inspire in today's TV-dominated culture.

A Tory MP is in hot water for referring to ethnic minorities as "coloured". But is it offensive, and when did it become so?

BBC Europe editor Mark Mardell on German attitudes to the swastika and the use of military force, and on Nicolas Sarkozy's plans to take forward the European constitution.

A full list of the winners at this year's Tony Awards in New York.

Stage actors are preparing for the 60th annual Tony Awards, which take place in New York on Sunday.

The full list of nominations for the 2006 Tony Awards.