Sumatran tiger cub
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Sumatran Tigers

16 June 2014 Last updated at 08:44 BST

There are only a few hundred Sumatran tigers left in the wild and experts say they could become extinct within the next 20 years.

But one zookeeper in Australia has gone to extreme lengths to help protect them...

Giles Clark brought two newborn Sumatran cubs called Spot and Stripe to live with him and his family at home.

Watch Newsround at 7.40 today to hear Giles talk about his unusual house guests!