Thorny Devils (Moloch horridus) are bizarre, small specialised ant-eating dragon (or Agamid) lizards found throughout the arid and semi-arid areas of Australia. They have large spines that are modified scales all over their bodies, and are beautifully marked in golden yellow, ochre red, black, grey and fawn. Thorny Devils are slow-moving, and rely on their pattern and irregular body shape as camouflage, as well as their ability to change colour in warmer or cooler conditions. They are very difficult to find in the bush, but are often seen on roads sunning themselves, usually with their tails curved upwards. Their spines have two functions – defence as well as for harvesting water that condenses on them. Condensed water is channelled to the mouth via grooves between the spines. Thorny Devils have a strange freezing and rocking gait as they move slowly about in search of small black ants, their main food.