There are 14 species of crocodile of varying sizes. The largest species, the saltwater crocodile, can weigh up to 4400 pounds but usually weighs from 2202 pounds to 2643 pounds, whereas the smallest, the dwarf crocodile, weighs from 40 to 70 pounds. In all species, males are larger than females.
The saltwater crocodile is the world's largest living reptile and is considered the most dangerous animal in Australia. All crocodiles have powerful jaws and streamlined bodies and are strong swimmers. They ambush hunters and can strike extremely fast. Crocodiles eat fish, amphibians, other reptiles, birds and mammals, and juvenile crocodiles also eat insects and crustaceans.