Quick answer
The saltwater crocodile is the largest living reptile, with big males reaching up to 6 m (20 ft) and over 1,000 kg (2,200 lb). Found across the Indo-Pacific from India to northern Australia, it has the strongest bite force ever measured in a living animal and is an ambush predator that can survive in both fresh and salt water. Saltwater crocodiles can live 70 years or more.
Key takeaway
The saltwater crocodile is the largest living reptile, with big males reaching up to 6 m (20 ft) and over 1,000 kg (2,200 lb). Found across the Indo-Pacific from India to northern Australia, it has the strongest bite force ever measured in a living animal and is an ambush predator that can survive in both fresh and salt water. Saltwater crocodiles can live 70 years or more.
Overview
The saltwater crocodile is the largest living reptile, with big males reaching up to 6 m (20 ft) and over 1,000 kg (2,200 lb). Found across the Indo-Pacific from India to northern Australia, it has the strongest bite force ever measured in a living animal and is an ambush predator that can survive in both fresh and salt water. Saltwater crocodiles can live 70 years or more.
Biology
Saltwater Crocodile (Crocodylus porosus) is classified as Reptile with conservation status Least Concern. Typical weight about 1000 kg; lifespan around 70+ years.
Ecology
Diet: Carnivore. Habitat: Estuaries, mangroves, rivers, coasts. Movement and social systems reflect those pressures.
People and this species
Learn before you travel or keep related pets. Wild individuals are not toys; captive care needs species-specific husbandry.
Further reading
See the full Saltwater Crocodile profile for FAQs, taxonomy, and related guides on this site.
Behavior and hunting
Saltwater crocodiles are patient ambush predators. They lie almost motionless at the water's edge, then explode forward to seize prey and drag it under in a "death roll." They are highly territorial, and large males defend stretches of river and coast aggressively.
Diet and bite
Salties eat almost anything they can overpower, from fish, crabs, and turtles to large mammals that come to drink. Their bite force is the strongest ever measured in a living animal, but the muscles that open the jaws are weak, which is why a crocodile's mouth can be held shut by hand.
Habitat and range
The saltwater crocodile ranges across the Indo-Pacific, from eastern India and Southeast Asia to northern Australia and the western Pacific. Unusually for a reptile, it tolerates salt water well and can travel long distances along coastlines between river systems.
Conservation
Hunted heavily for their skins in the 20th century, saltwater crocodiles were pushed to low numbers in many areas. Protection and managed populations, especially in Australia, allowed a strong recovery, and the species is now listed as Least Concern overall, though some regional populations remain at risk.
Research notes
Figures for saltwater crocodiles (Crocodylus porosus) come from field studies, museum records, and conservation assessments that do not always agree on exact averages. Prefer ranges over single-point claims, and check whether a source describes wild, captive, or mixed populations.
Practical takeaways
If you encounter saltwater crocodiles in the wild, prioritise distance and local guidance. If you care for related domestic or captive animals, match diet and housing to species needs rather than generic pet advice. Share accurate status information (Least Concern) when discussing conservation.
Sources
FAQs
Saltwater Crocodile: Key Facts & Natural History?
The saltwater crocodile is the largest living reptile, with big males reaching up to 6 m (20 ft) and over 1,000 kg (2,200 lb). Found across the Indo-Pacific from India to northern Australia, it has the strongest bite force ever measured in a living animal and is an ambush predator that can survive in both fresh and salt water. Saltwater crocodiles can live 70 years or more.
What is the scientific name of the saltwater crocodile?
Crocodylus porosus
What do saltwater crocodiles eat?
Carnivore
Where do saltwater crocodiles live?
Estuaries, mangroves, rivers, coasts
Are saltwater crocodiles endangered?
Listed here as Least Concern. Check IUCN and national lists for the latest assessment.