An ecological impact study on the creatures suggests reintroducing them to the mainland could make it a new apex predator above foxes and feral cats.
Shooting or trapping feral cats may increase their numbers, a new study has found.
Animal experts propose very different tactics to manage the nation's feral cat population.
Animals such as the bandicoot, quoll and tree possum are in dramatic decline in the country's north, and feral cats could be the cause.
Both victims were forced to seek medical attention for their injuries.