The Simpson Desert ecosystem in central Australia covers around 200,000 square kilometers of sandy soil and is home to several unique animal species that have adapted to the harsh, dry conditions. Some of the animals found in the Simpson Desert include the thorny devil lizard, which has grooves on its body to drink water on the go; the sand monitor lizard, a large lizard that burrows underground; dingoes, wild dogs that are not truly native but now the dominant wild canine; and the highly venomous racer snake, identified by its triangular head and distinctive rattle sound.