After spending the last decade battling a decline in the population of bighorn sheep, the koala bear was born.
The animals have become so popular they are even on sale in Australia.
But despite the zoo’s efforts to save the bears, the number of koalas has declined from about 15,000 to just 3,000.
And it’s not just the koalos that are facing a decline.
In New South Wales, the population has dropped by half since 2010.
But the koalan population has continued to grow and now numbers are at more than 20,000, making the state one of the country’s most biodiverse areas.
The zoo in the state’s south-west, the Bear Creek Wildlife Sanctuary, is also facing a crisis, with its two animals under threat from habitat loss and poaching.
It was a time when the koals were being brought in to live with humans and other animals.
Now, they are the only animals left in the area, and the only ones left in New South