There are two species of crocodiles in Australia - the smaller, freshwater crocodile, and the large, deadly Saltwater Crocodile.
Freshwater crocodiles eat small prey such as insects, small fish, frogs, and small reptiles and mammals.
Saltwater crocodiles eat large prey, they can take animals like feral pigs, kangaroos and cattle and buffaloes. They are very skilful killers and if they can they eat humans too. They are opportunistic feeders and they hunt mainly at night time, mostly at water's edge. They are massive animals and their jaws are very powerful.
NOTE: This website is written in British English, which is the English we use in Australia. You will find words like "traveller", "harbour" and "realise", and they are all correct in the language used in Australia.