Mammals
Northern Quoll
Dasyurus hallucatus · also called satanellus, fawn-footed quoll
Snatching an insect from beneath a fallen log, a northern quoll forages across the tropical savanna it calls home, a spotted, cat-sized predator whose population has collapsed across huge stretches of its range since invasive cane toads arrived.
Overview
The northern quoll, Dasyurus hallucatus, is the smallest of Australia’s four quoll species, native to savanna and forest habitat across tropical northern Australia. Its severe decline from cane toad poisoning, the striking phenomenon of most males dying after a single breeding season, and its distinctive white-spotted coat make it one of the more urgently threatened and biologically fascinating carnivorous marsupials found anywhere in Australia.
A predator undone by a toxic invader
Nothing in the northern quoll’s evolutionary history prepared it for the arrival of the cane toad, a large, toxic amphibian that quolls readily attack and eat, only to be poisoned in the process, wiping out entire local populations as the toad’s invasion front has spread across northern Australia.
Status
Endangered, having suffered severe declines and local extinctions primarily due to cane toad poisoning, compounded by habitat loss and predation from feral cats.
Northern Quoll: common questions
Why has the northern quoll declined so severely?
This species has suffered severe population declines primarily because individuals die after eating invasive cane toads, which carry toxins lethal to native predators that evolved without any exposure to a large, toxic amphibian, causing local extinctions across parts of the toad's invasion front.
Why do most male northern quolls die after breeding?
In many populations, most males of this species die shortly after a single intense breeding season, a phenomenon linked to the physiological stress of prolonged, highly competitive mating activity that leaves males exhausted and vulnerable in the weeks that follow.
How can you identify a northern quoll?
This species has a coat covered in distinct white spots over a reddish-brown or grey-brown background, and as the smallest of Australia's four quoll species, its comparatively small, cat-like size combined with this spotted pattern helps distinguish it from its larger relatives.
Where does the northern quoll live?
This species is native to savanna and forest habitat across tropical northern Australia, including parts of Queensland, the Northern Territory, and Western Australia, though it has disappeared from significant portions of this range following the spread of invasive cane toads.