Christmas for the animals.

The article relates how Christmas is celebrated by animals at Taronga Zoo in Sydney, New South Wales, Australia. Topics covered include overview of the zoo's enrichment program aimed at making life for all animals at the zoo as stimulating and interesting as possible, role of animal nutritionist in preparing food for the animals that is based on their natural diet and role of Taronga Zoo in the efforts to preserve critically endangered animals like the Sumatran tigers.