The Park supports a large diversity of animals including a number of threatened species such as the Smoky Mouse, Broad-toothed Rat, Powerful Owl, Spotted Tree Frog and She-oak Skink.
The rare Mountain Pygmy possum, the worlds only exclusively alpine marsupial and the only marsupial that stores food to last it throughout the winter is also found amongst isolated boulder slopes covered with heathlands. This specialised habitat can only found in a few places within the Victorian and New South Wales Alps.
The Bogong Moth is an interesting insect inhabiting the Bogong and Dargo high plains and peaks between November and April, away from the heat of the inland plains. For thousands of years, Aborigines travelled to the high country in summer to hold ceremonies and feast on the protein rich Bogong Moths. Here they shelter in rock crevices where they provide food for Mountain Pygmy possums and Little Ravens.