Dave Watts / Eastern Quoll {Dasyurus viverrinus} on log, dark phase, Tasmania, Australia.

Martin Willis / Spotted-tailed Quoll (Dasyurus maculatus), Arthur River, Tasmania, Australia

Martin Willis / Spotted-tailed Quoll (Dasyurus maculatus) at night, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Martin Willis / Spotted-tailed Quoll (Dasyurus maculatus) foraging at night, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Martin Willis / Spotted-tailed Quoll (Dasyurus maculatus) at night, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus) pair, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus), Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus), Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus) killed on road, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus), Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus), Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus) feeding, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus) at night, Tasmania, Australia

Martin Willis / Eastern Quoll (Dasyurus viverrinus) at night, Tasmania, Australia

Roland Seitre / Western Quoll / Chuditch / Atyelpe (Dasyurus geoffroii). Captive. Desert Park, Alice Springs, Northern Territory.

Roland Seitre / Western Quoll / Chuditch / Atyelpe (Dasyurus geoffroii). Captive. Desert Park, Alice Springs, Northern Territory.

Roland Seitre / Western Quoll / Chuditch / Atyelpe (Dasyurus geoffroii). Captive. Desert Park, Alice Springs, Northern Territory.

Dave Watts / Tiger / Spotted-tailed Quoll (Dasyurus maculatus) feeding on Green rosella parrot (Platycercus caledonicus) Tasmania, Australia

Dave Watts / Tiger / Spotted-tailed Quoll (Dasyurus maculatus) Tasmania, Australia

Dave Watts / Tiger / Spotted-tailed Quoll (Dasyurus maculatus)being tracked in rainforest with cotton spool attached by biologist, Tasmania, Australia

Dave Watts / Tiger / Spotted-tailed Quoll (Dasyurus maculatus) Tasmania, Australia

Dave Watts / Eastern Quoll {Dasyurus viverrinus} dark phase, Tasmania, Australia.

Dave Watts / Eastern quoll {Dasyurus viverrinus} Tasmania

Norbert Wu / Kangaroo, Tiger Quoll, and Emu road sign in rainforest habitat, Queensland, Australia

Mitsuaki Iwago / Eastern Quoll (Dasyurus viverrinus) on rainforest floor, Australia

Shin Yoshino / Spotted-tailed Quoll (Dasyurus maculatus) portrait, Australia

Dave Watts / Spotted-tailed quoll {Dasyurus maculatus} Australia

WILLIAM OSBORN / Northern quoll {Dasyurus hallucatus} male foraging, Northern Territory, Australia

WILLIAM OSBORN / Northern quoll {Dasyurus hallucatus} male, Northern Territory, Australia

Michael Pitts / New Guinea quoll {Dasyurus albopunctatus} Papua New Guinea

Dave Watts / Eastern quoll, pale phase {Dasyurus viverrinus} Tasmania, Australia

Dave Watts / Eastern quoll, dark phase {Dasyurus viverrinus}Tasmania, Australia

Dave Watts / Eastern quoll, pale phase {Dasyurus viverrinus} Tasmania, Australia

Dave Watts / Tiny baby Eastern quolls {Dasyurus viverrinus} in mother's pouch, native to Tasmania only, Australia.

Dave Watts / Eastern quoll {Dasyurus viverrinus} in pale phase, Tasmania. Habitat range includes woodlands, heath and farmlands.

Dave Watts / Eastern quoll {Dasyurus viverrinus} in dark phase, Tasmania. Habitat ranges include woodlands, heath and farmlands.

Martin Willis / Eastern Quoll (Dasyurus viverrinus), Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Michael Pitts / Tiger quoll {Dasyurus maculatus} Papua New Guinea

John Cancalosi / Tiger quoll (Dasyurus maculatus) Australia captive