Australia Australian boomers bucks cultural culture does emblem emblematic eyes fast fauna features flyers fur greys head herbivores icon iconic Jacks jills jump jumping kangaroo macropod macropodidae Marsupial mob national native popular pouched powerful powerful-hind-legs protected protection relaxing roos secure secured speed strong symbol symbolic teeth upright wildlife chain dock docked fregat front harbour military navy perspective power rope safety security ship warship aerial-roots banyan banyan-tree clinging competing competitive constricting contrast contrasting creeper distinctive external fig foliage greenery growing growth interconnected interlinked intertwined interwoven leaves light root-system Roots shadows shapes spread spreading strangler-fig strangling strength sunlight sunshine surface surfaces tree trees tropical vegetation vine wood woody communication danger electricity red sign voltage volts warning white wording background backgrounds board circuit color colors component computer electronic electronics part parts technologic technology guidance guide Jetty location marker navigation passage powered route solar transport travel water architecture concept construction depth dig digging excavate excavating excavation machine saavem scene street under cable cattle fields grass green grid metal pole pylon rural sheep transmission wires chrome tube exhale exhaust pipe motor pipe racing sports steel tractor tractor pulling weights