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Chimpanzee looks after tiger cubs in Thai zoo

30 July 2011 Last updated at 13:55 BST

A young chimpanzee has become the unlikely substitute mother for a group of tiger cubs in a Thai zoo.

Dodo, the two-and-a-half-year-old chimpanzee, was trained to feed the cubs from a bottle of milk, and has been doing the job for about a year.

But keepers say the cubs will soon outgrow Dodo and they will have to be separated.