agile animal arboreal climber color colored colorful colors colour coloured colourful colours dendrolagus-goodfellowi-buergersi distinctive endangered Goodfellow’s-tree-kangaroo highly-threatened jumping-ability macropodidae Marsupial omnivore omnivorous ornate-tree-kangaroo overhunted Papua-New-Guinea rainforest-habitat rare tree-climber African-dwarf-crocodile armoured-skin black-crocodile bony-crocodile broad-snouted broad-snouted-crocodile carnivore carnivorous cold-blooded crocodile Crocodilia dense-rainforest dwarf-crocodile habitat-loss nocturnal open-mouthed osteolaemus-tetraspis reptile reptilian rough-backed-crocodile small solitary-animal vulnerable West-African zoo joey mother pouch young youngster