It looks like a tiny kangaroo and it’s bouncing back from the brink of extinction
The brush-tailed bettong once inhabited most of Australia, but these days it lives in a tiny fraction of its former range.
To save Australia's animals, scientists must count how many are left. But what if they're getting it wrong?
Humans are causing enormous damage to the Earth, and about 1 million plant and animal species are now at risk of extinction.