Australian rainforests are home to some of the most interesting and distinctive native animals. The striking Southern Cassowary is Australia's largest bird reaching 70kg and 1.8m tall. The Northern Queensland rainforest is also populated by the beautiful jewel coloured Ulysses butterfly, whose numbers are mysteriously dwindling in both the wild and captivity. Other creatures in the rainforest ecosystem include the spotted quoll, the frilled neck lizard, the ring tailed possum, the doubled eyed fig parrot, Boyd's forest dragon, the green tree frog, the spotted catbird and the kingfisher.