The chances of finding one mammal species thought to be lost was ‘almost zero’ and finding two is ‘unprecedented’, biologist Tim Flannery says The chances of finding one mammal species thought to be lost was ‘almost zero’ and finding two is ‘unprecedented’, biologist Tim Flannery says R esearchers led by the Australian scientist Tim Flannery have made a once-in-a-lifetime discovery: that two charismatic marsupial species that had been thought extinct for 6,000 years are alive in rainforest in