African-dwarf-crocodile animal armoured-skin black-crocodile bony-crocodile broad-snouted broad-snouted-crocodile carnivore carnivorous cold-blooded crocodile Crocodilia dense-rainforest distinctive dwarf-crocodile habitat-loss nocturnal open-mouthed osteolaemus-tetraspis reptile reptilian rough-backed-crocodile small solitary-animal vulnerable West-African zoo eye Gando Iran mugger crocodile Persian crocodile alligator alligators amphibian caiman crocodiles dinosaur everglades Florida gator gators leather predator reptiles scales swamp water wetland wetlands armor armored armorment armour armoured armourment backstraps bony ridges crocodylus-porosus danger dangerous dorsal-surface estuarine-crocodile exotic fauna hide hornback huge Indo-Pacific-crocodile large largest-reptile leathery lethargic omnivorous opportunistic opportunistic-predator osteoderms patterns powerful ridges rough rugged saltwater-crocodile scutes skin tail tail-scutes territorial texture textured textures Australian-freshwater-crocodile bony-ridges crocodylus-johnsoni fresh-water-crocodile freshie Johnstone's-crocodile semi-submerged