The Saltwater or Estuarine Crocodile (Crocodylus porosus) is the world's largest crocodilian, with males growing to 6 metres, and reputedly to 8 metres. The species ranges from India through SE Asia, New Guinea and Australia east to the Solomon islands. Its numbers have diminished greatly over most of its range in the past few decades due to hunting and habitat loss. Only in northern Australia does the species still thrive. It occurs in creeks, rivers and swamps, mangrove estuaries and often in the open sea. It feeds on virtually any living animal prey from insects and frogs and fish when small, to large vertebrates such as pigs and calves when adult. It will also attack and eat humans and such fatalities, though rare, do occur from time to time in Australia. Photographed in the vicinity of Cairns, Queensland, tropical northern Australia.