As well as using their beard to communicate, bearded dragons also use other gestures such as arm waving and head bobbing. Arm waving is thought to be a way for bearded dragons to recognise others from the same species and is also seen as a submissive behaviour. Head bobbing is aggressive and usually done with a puffed up, darkly coloured beard!
In this species, both males and females have beards. Both sexes display the same behaviours when using their beards to communicate.