elephant hide rough skin texture tough wrinkle Australian fauna blue tongue bobtail lizard reptile scaly skin sticking tongue out tongue tough hide Australia Australian crawling creature eyes fauna goanna gravel mottled scaly wildlife abstract angles backdrop background blended color colour decorative design detailed edges folds geometric geometrical gray grey hair hairy image interconnected intermeshed interwoven light lines patterned patterns rhino rhino-hide rhino-side rhinoceros style surface textures thick wallpaper wrinkled wrinkles animals appearance Asian-elephant-subspecies big browsers close colored colors coloured colours communicating connected connecting elephant-hide elephants elephas-maximus-indicus enclosure endangered Females grazers habitat-loss heavy herbivore Indian-elelphants intelligent mammal megaherbivores strength strong trunks wrinkly zoo tusks downpour rain raining Singapore wet