Western quolls reintroduced to unprotected outback area survive despite extinction threats FriFriday 5 MarMarch 2021 at 9:21pm Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch (Supplied: Katherine Tuft, Arid Recovery) Share Print text only Key points: Western quolls are listed as a vulnerable mammal species Researchers in SA's far north are monitoring the progress of those reintroduced outside a protected area Tracking data shows males are surviving in the arid conditions The Department of Biodiversity, Conservation and Attractions (DBCA) in Western Australia estimates western quolls once existed "across nearly 70 per cent" of Australia in all states and territories.