We explore this question in an article published today in The Conversation.
To read the full article titled “Mourn our lost mammals, while helping the survivors battle back ” click HERE

Gone from this earth: Four of the 30 Australian mammal species that have gone extinct since European settlement. The desert rat-kangaroo (top left), the eastern hare-wallaby (top right), the white-footed rabbit-rat (bottom left), and the pig-footed bandicoot (bottom right).