aluminium blank can close conserve design food isolated metal object preserve product reflected reflection steel stock storage survival survive tin agave arid Cacti cactus cliff difficult dry endurance endure face Funchal green hard madeira natural nature pear plant Prickly rock sere sharp spine spined spiny succulent tough adventure compass direction map navigation sea security travel banch gravel growth leaf life Nyberg pile spring stenght sun tree adept agile attractive Australia Australian big-footed color colored colour coloured colourful conservation endangered fauna fur golden-yellow-limbs hardy macropod macropodidae macropods mammal mammals Marsupial marsupials native petrogale-xanthopus-xanthopus recovering recovery rock-wallaby rust-coloured South-Australia sure-footed surviving survivors thick-fur-coat threatened vulnerable wallaby wildlife yellow-footed-rock-wallaby