Australia has the highest extinction rate of mammals in the world. But what does this erasure actually do to us? It’s more profound than many of us realise. 

It’s not just that our country has lost 33 species of its unique mammals since colonisation in 1788. Their eradication has also changed the wider environment in which we live. Even changed what we, and our children, know to be true about the world.

Today, National Environment and Climate Editor Nick O’Malley on how one group of conservationists has built a veritable time machine to save native animals. And the once-derided tools it’s used to get the job done.

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