A great diversity of mammals, birds, fish, amphibians and reptiles can be found in the Simpson Desert, according to eoearth. The area has a higher degree of biodiversity than most Australian arid regions due to its proximity to large floodplains.
The Simpson Desert is able to support a large range of wildlife due to frequent flooding. The floods originate outside the desert, but will flow into the region. Floods tend to occur in intervals of 2 to 3 years, which creates temporary wetlands. These wetlands are important breeding grounds for many species of fish, as well as a home for birds such as the Australian pelican, black swan and egret.
Many animals that live in the Simpson Desert are nocturnal, taking advantage of the lowered temperatures at night; to avoid the heat during the day, they will burrow underground. Some of these nocturnal animals include the bilby, the dusky hopping mouse and the hairy-footed dunnart.