Saltwater crocs, or "salties", as they are more affectionately referred to in Australia, are the earth's largest living crocodilian. The average size of males reach 5 metres (17 feet) and 450kg (1,000 pounds) but specimens 7 metres long weighing 1,000kg have been found - so they say!
Crocodiles are the classic opportunistic hunter, lurking patiently beneath the surface near the water's edge, wating for potential prey to stop for a drink of water.
Crocodiles bask in the sun through much of the day, preferring to hunt at night.
