Who whale win art's Turner Prize?
Updated on 05 October 2009
The skeleton of a sperm whale, the brain of a cow and the dust from an atomised aircraft engine feature in this year's Turner Prize exhibition.
The prize, which is in its 25th year, is given to a British artist under 50 for an outstanding exhibition or presentation.
Roger Hiorns, best known for turning a derelict council flat into a magical grotto by filling it with blue crystals, is the bookmakers' early favourite to win.
The exhibition opens at Tate Britain in London on Tuesday.
