 Bearded dragons vary widely in colour, including brown, reddish-brown, red, yellow, white, and orange.They are capable of undergoing moderate changes in the shade of their colour to help scales along both sides of the throat, neck, and head form many narrow spines which run down the side of the body to the tail.When feeling threatened, a bearded dragon will flatten its body against the ground, puff out its spiny throat and open its jaws to make itself appear larger.