Australia blotched blotches brown carnivore carnivorous color colors colour colours common dark fast forager goanna goulds-goanna goulds-monitor hunter large leathery lizard long-clawed loose-neck-folds loose-neck-skin monitor-lizard patterned predator racehorse-goanna reptile reptilian sand-monitor terrestrial age aged armor armored armorment armour armoured armourment carapace elongated-neck giant-tortoise herbivore hide large-tortoise longevity neck old plod plodding protection protective shell size skin slow strength strong texture textured textures tortoise zoo abstract appearance astrochelys-radiata critically-endangered endangered giant tortoise large tortoise Madagascar radiated-tortoise aldabra giant tortoise aldabrachelys gigantea eating eating grass elongated neck Seychelles