animal Australian brown creature Dirt earth ground kangaroo macropus mammal Marsupial nature paw standing zoo agilis alert black common dry friendly grass green red sandy sun warm white whitish colored colors coloured colours grazer herbivore herbivorous large largest-living-marsupial light lying macropus-rufus mixed-light native patchy reclining red-kangaroo red-soil reddish-brown resting roo secluded shade shadows strength sunlight sunshine texture textured textures wild wildlife