african broad-mouthed collagen creases endangered flat-mouthed folds gray grazer grey heavy herbivore herbivorous hide horns keratin large lattice structured mammal megafauna odd-toed ungulate perissodactyl placid powerful rhino rhinoceros skin snout southern white rhinoceros square-lipped rhinoceros strong thick threatened tough white rhinoceros wide-lipped rhinoceros wrinkled wrinkles carpentry cracked cracks damaged dented drive for-tight-fitting-parts general-purposes hammer handle handles head hit mallet mallets paving paving-work preference-tool proportion relatively-large-head rubber rubber-mallet size softer-blow strike striking striking-faces tap tapping tight-fitting tool tools used wood wooden-handles wooden-mallet appearance artocarpus-heterophyllus Asian availability available buy buying cambodia cambodian carry carrying colors colours creamy display distinctive edible flavor flavors flavour flavoures flesh food for-sale fruit green jackfruit largest-tree-fruit local market market-stalls merchandise merchants purchasable quantity rough spikes spiky surface texture textures tropical white yellow abstract abundance abundant backdrop background cleared colored coloring coloured colouring contrast contrasting dense density direction foliage greenery growth jungle leafy leaves light path paved pavers plants rain shade shadows shrubbery sunlight sunshine track trail trees variations variety vegetation wallpaper way-through well-maintained wet animals Asian-elephant-subspecies big browsers close color colour communicating connected connecting elephant-hide elephants elephas-maximus-indicus enclosure Females grazers habitat-loss hair hairy Indian-elelphants intelligent megaherbivores strength style trunks wrinkly zoo