Why are quolls in danger of extinction?

Answer 1

Quolls are not in danger of extinction. All Quoll species are threatened by loss of habitat, viruses, predation by dogs, cats and foxes, and competition from introduced species. The Spotted-tail and Northern Quolls are both being killed off as a result of eating the Cane Toad, which is poisonous.

Incidentally, not all quolls are classified as endangered.

• The spotted tailed quoll is endangered only in South Australia and Queensland. It is classified as "vulnerable" in New South Wales, Victoria and Tasmania.
• The Eastern quoll has not been sighted on the mainland since about 1963, but it is still relatively common in Tasmania, but is classified as "threatened" there.
• The western quoll, or Chuditch, is extinct in all states except for the far southwestern corner of Western Australia, where it is "vulnerable".
• The Northern quoll, however, is classified nationally as "endangered", and in the Northern territory it is "critically endangered".