Pogona is a genus of reptiles containing six lizard species which are often known by the common name bearded dragons. The name 'bearded dragon' refers to the underside of the throat (or 'beard') of the lizard, which can turn black and gain weight for a number of reasons, most often as a result of stress, or if they feel threatened. They are a semi-arboreal species, spending significant amounts of time on branches, in bushes, and near human habitation. Pogona species bask on rocks and exposed branches in the mornings and afternoons. Their diet consists primarily of insects, vegetation, and occasionally small rodents. They are found throughout much of Australia and inhabit a wide range of environments, such as deserts, shrublands and Eucalyptus woodlands. Adult bearded dragons are very territorial. As they grow, they establish territories in which displays of aggression and appeasement form a normal part of their social interactions. A dominant male will adopt a dominant stance and sometimes ready himself for a fight to attack a male aggressor to defend territory, food sources, or in competition for a female. Any male approaching without displaying submissive behavior will be seen as a challenge for territory. Aggressive males have even been known to attack females who do not display submissive gestures in return. (Source: Wikipedia.org, CC BY-SA)