A male Yellow-spotted agama (Trapelus flavimaculatus) in full defensive display. These lizards are normally a dull brown and olive green colour, mottled in yellow and white. When cornered, or, it is thought, to display to a female, their skin turns to vividest blue, their normally pale yellow tails glow bright orange, their dewlaps unfurl and they open their mouths wide to display the bright scarlet-orange insides. This one was sunbathing by the side of a desert road and found himself cornered when he ran the wrong way to get away from me and found himself up against a heap of metal and plastic construction debris. Cue display!