Estuarine Crocodile

(Crocodylus porosus)




Length: up to 20 ft;  weight: 900-2,200 lbs


50 to 70 years in the wild

Population in the Wild:

Approx. 1,610 individuals

Family Life:


They live in loose social groups dominated by the strongest male.




Freshwater swamps and rivers, but they can also be found in brackish waters as well as the ocean.

How they move:


They can run at speeds up to 10 mph, and can swim at speeds up to 25 mph.

What they eat:


Buffalo, Guar, cattle, deer, birds, and fish

Closest  Relative:


Relationship to  Humans:


They are a keystone species.  This means that they help to regulate the populations of prey species 

photo M Noonan

Fun Fact:

Crocodiles have the strongest bite out of all animals!  They use this powerful bite to break through bone and flesh!

Conservation Status:

There are many threats facing the Estuarine, or saltwater crocodile in the wild. Threats to this species include the overhunting for commercial use, the loss of habitat due to deforestation and the building of dams, and predation of eggs by humans and non-human predators.

What is being done now?

Even though there is much work to be done in order to abolish the threats facing the Esuarine Crocodile, there have been small successes.  Breeding programs have been established in order to fight the decline in the population.  Sanctuaries, national parks, and reserves have opened in order to ensure that the remaining population has a safe place to live and reproduce.  Currently there is a ban on the commercial trading of crocodile products in many nations.  

What should be done in the future?

To have complete success and help the Estuarine Crocodile survive the ideal solution would be to procure habitat, and put stricter anti-poaching laws into place that would result in harsher punishments for people caught poaching.


Content provided by Canisius College students under the direction of Michael Noonan, PhD.