Central Bearded Dragon (Pogona vitticeps), Alice Springs Reptile Centre, Alice Springs, Northern Territory, Australia.
Taken with Canon EOS550D. EFS 55-250mm Lens.
The male will only wave to show submission to a dominant male, whereas the female will wave, followed by a slow head bob, to show she is ready to mate. Gravid females will often refuse the advances of a male by chasing him and lying on his back.