"Flat head". That's what the water holding frogs (Cyclorana platycephala) Latin species name, "platychephala", translates to. The name reflects the broad, flat head, which characterises this species. The common name is also of interest, as it describes the physiological behaviour of this frog to 'hold water', meaning that it has the ability to store excess water in its bladder in order to prevent desiccation. This life history trait is due to the harsh, semi-arid environment these species occurs in. More than just holding water, this species employs another strategy used to survive its dry environment; it borrows under ground to escape the harsh surface conditions. Remarkably, while underground it further prevents drying out by enveloping itself within its own water-tight mucous cocoon made from its skin. While underground it can then undergo aestivation, which is a state of dormancy whereby the frogs metabolism is reduced until it become completely inactive until suitable weather conditions occur. For any frog in the outback, rainfall is the major driver for favourable breeding conditions. When heavy rainfall occurs, the water holding frog will awake from its dormancy and eat its mucous cocoon as a form of acquiring nutrients before emerging to the surface to forage and reproduce.