There is a distinctive swelling in front of each eye, visible in all except the hatchlings. Adults take on an olive brown colour. Iris is silvery. Also takes birds. Feeds primarily at night.
Juveniles take small fish and invertebrates.
Often blamed for the disappearance of domestic animals in more populated areas. Occasional reports of attacks on humans, but authenticated records are very rare. 2.5 m. Populations adapt their breeding strategy to suit the environment. Flooding creates high mortality. The minimum number of eggs laid in the nest can be around 20 in some populations, but is usually between 30 and 60, the mean being around 38.