Australia curious kangaroo Marsupial nosey wallaby roo wally eucalypt eucalyptus gum koala leaves animal mammal swamp native nature Possum arboreal arboreal herbivorous marsupial Australian cultural culture emblem emblematic eyes fauna features fur furry head herbivorous icon iconic image inactive koala bear national nostalgia nostalgic phascolarctos cinereus popular pouched protected protection secure secured slow slow metabolism symbol symbolic wildlife colored colors coloured colours grazer herbivore large largest-living-marsupial light lying macropus-rufus mixed-light patchy reclining red-kangaroo red-soil reddish-brown resting secluded shade shadows strength sunlight sunshine texture textured textures wild bag child grass joey kangaroos lay mammals mother pouch rest zoo