Australia is one of the world’s 17 “megadiverse” countries — a nation with an extraordinary concentration of unique species found nowhere else on Earth. Yet it also holds the grim distinction of having one of the highest rates of species extinction of any country in the modern era.
⚠️ Over 500 animal species are currently listed as threatened or endangered under Australian federal law.
Why Australian Wildlife Is Uniquely Vulnerable
Australia’s animals evolved in isolation for tens of millions of years, developing without exposure to many of the predators or diseases found on other continents. This isolation produced extraordinary diversity — but also extreme fragility when new threats arrived. Introduced species such as feral cats, foxes, and cane toads have devastated native populations that had no evolutionary defences against them.
Key Threats
Habitat Loss
Land clearing for agriculture and urban development has destroyed and fragmented vast areas of native vegetation. Australia has one of the highest rates of land clearing in the developed world. Habitat loss is the single greatest driver of species decline.
Introduced Predators
Feral cats alone are estimated to kill over 1.5 billion native animals every year in Australia. Foxes, dogs, pigs, and rabbits compound the damage. Managing feral animal populations is one of the most urgent conservation priorities.
Bushfires
The 2019–2020 “Black Summer” bushfires killed or displaced an estimated 3 billion animals — one of the largest wildlife disasters ever recorded. Many populations are still recovering, and some species that were already endangered may have been pushed to extinction.
Climate Change
Rising temperatures, changing rainfall patterns, and more frequent extreme weather events are altering habitats faster than many species can adapt. Coral bleaching, dryland expansion, and reduced snowpack in alpine regions are all having measurable impacts on wildlife.
Species in Focus
| Species | Status | Main Threat |
|---|---|---|
| Koala (eastern populations) | Endangered | Habitat loss, disease, climate |
| Greater Glider | Endangered | Logging, fire |
| Numbat | Endangered | Feral predators |
| Regent Honeyeater | Critically Endangered | Habitat clearing |
| Mountain Pygmy Possum | Endangered | Climate, skiing infrastructure |
| Tasmanian Devil | Endangered | Disease (DFTD), roads |
What You Can Do
- Support WWF Australia’s wildlife programs at wwf.org.au
- Report injured wildlife to your state rescue service (see our contacts page)
- Keep cats indoors, especially at night
- Plant native species in your garden to provide wildlife corridors
- Support land clearing controls by contacting your local representative