Yeah! The puffed up stance is saying just that, too. If you lived (naturally) in an environment with hyenas, wild dogs, ratels, meerkats, etc. and other high-end African land mammals, you may learn to 'stand your ground' [metaphorically speaking, in evolutionary terms] as Pyxicephalus has. This is what makes this frog *absolutely* unique among all frogs.....its aggressive, and will not hesitate to bite when defending its tadpoles [size helps, of course...]. I love em!!!!