Australia's efforts to bring koalas back from the brink of extinction

The population of Australia's iconic koala has been rapidly declining in recent decades, and this year the Australian Koala Foundation declared the marsupials "functionally extinct." But one Queensland zoo is using proven breeding strategies to protect the animals, and starting a live genome bank to tackle some of the biggest threats to koalas. Special Correspondent Kirsty Johansen reports.

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Australia's efforts to bring koalas back from the brink of extinction

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