A young chimpanzee eats a hibiscus ice block Christmas treat at Sydney's Taronga Zoo.
A young chimpanzee sits by himself eating a hibiscus ice block at Sydney's Taronga Zoo December 23, 2004. Zookeepers also fed the chimpanzees frozen fruit and pine cones filled with yoghurt as Christmas treats. NO RIGHTS CLEARANCES OR PERMISSIONS ARE REQUIRED FOR THIS IMAGE. REUTERS/Tim Wimborne TBW/CP