Saltwater crocodile

The saltwater crocodile (Crocodylus porosus) is the largest living reptile; males are typically 3.5–5 m long and 200–1,100 kg, exceptionally over 6 m, while females measure 2.7–3.1 m and 76–103 kg. A broad heavy snout and prominent dorsal ridges distinguish it, and salt glands allow long sea crossings. It ranges from eastern India through South-East Asia and New Guinea to northern Australia in estuaries, mangroves and tidal rivers. Fish, turtles, birds and large mammals are ambushed. Clutches of 40–60 eggs hatch after 75–106 days. The IUCN lists it Least Concern.