The Ventriloquial Frog
The Breviceps family of frogs (commonly known as Rain Frogs) must hold the award for the grumpiest looking frogs in the country. There are 14 species that are endemic to southern Africa and many are difficult to separate from one another unless you know their calls and look at their distribution maps. They all have chubby, small rounded bodies and flattened faces that, according to at least one reference book, makes them look like little balloons. When disturbed they inflate their bodies adding to the balloon-like appearance.