Saltwater crocodiles

Alex MazzadiGrade 6 fessenden school

Scientific Classification

Scientific Name

Crocodylus Crocodylus PorosusPorosus

Phylum Chordata

Class: Reptilia

Superorder: Crocodylomorpha

Order: Crocodylia

Superfamily: Crocodyloidea

Family: Crocodylidae

Apperance

•Grows up to 17 feet17 feet or 5m5m•Hard armourHard armour like skin ontop•Short legsShort legs•Long powerful tailtail•Thin powerful jawsjaws

A side and top view shows the different snouts of an alligatoralligator and a crocodilecrocodile. Saltwater crocodilesSaltwater crocodiles both top and bottom teeth showtop and bottom teeth show. American alligatorsAmerican alligators have only bottom teeth showingbottom teeth showing

Where the saltwater crocodile lives?

http://animals.nationalgeographic.com/animals/reptiles/saltwater-crocodile/

•SaltSalt and fresh waterfresh water

regions in:

•Eastern India

•Southeast Asia

•Northern Australia

•They are excellent excellent

swimmers swimmers and have often

been spotted far out at seasea

Reprodution Breeding season for saltwater crocodiles usually

begins in late September. In captivitycaptivity the breeding season begins in August During this time, the crocs, male and female both,

become very aggressiveaggressive and territorialterritorial There are generally between 40-60 laid eggs40-60 laid eggs Eggs hatchhatch 65-95 days later after laid Not many eggs survive due to floods and

predators

http://animals.nationalgeographic.com/animals/reptiles/saltwater-crocodile/

Diet They’ll feed on anything

they can get their jaws on, including:

water buffalo, monkeys wild boar and even sharkssharks!!!

MARINEBIO. http://marinebio.org/species.asp?id=187

Predators HumansHumans AnacondasAnacondas Many eggs don’t

survive because are preyed by other animals

They are on the top top of the food chainof the food chain, so little to worry about !! Giant monster crocodile (1 ton

and 21 feet) captured in the Philippines by 9090 men

http://news.nationalpost.com/2011/09/06/photos-giant-salt-water-crocodile-captured-in-the-philippines/

Saltwater crocodiles contribute to the diversity

of life by: Keeping population controlpopulation control of: Fish Water buffalo Wild boar Turtles Snakes Birds Crabs Wild boar Buffalo Monkeys

Why Humans Hunt Crocodiles They regard them as a threatthreat to humans

and live stock For their leathery hideleathery hide (economic

reasons) For huntinghunting purposes For making new territorynew territory

What can be done to help Saltwater CrocodileSaltwater Crocodile survive?

Stop cutting down territory Stop hunting saltwater crocodiles Create crocodiles farmscrocodiles farms

Interesting facts Saltwater Crocodile is the earth’s largest earth’s largest

living crocodilianliving crocodilian Classic opportunistic predatorsopportunistic predators Population estimates range from 200,000 to

300,000 worldwide Considered at low risklow risk for extinction. ExplodeExplode from the water with a thrash of their

powerful tails GraspGrasp their victim, and dragdrag it back in, holding

it under until the animal drowns.

References http://animals.nationalgeographic.com/animals/reptiles/saltwater-

crocodile (Nov23.2011)

www.wikipedia.org (Nov25.2011)

www.britannic encyclopedia.com (Nov28.2011) http://w3.shorecrest.org/~Lisa_Peck/MarineBio/syllabus/

ch9vertebrates/reptilesandbirds/repbirdwp/barbara/repro.html (Nov23.2011)

MARINEBIO-http://marinebio.org/species.asp?id=187 (dec2.2011)

Thanks for watchingThanks for watching

…and Remember: Do Not Hunt Crocodiles!

Alex MazzadiScience Presentation

Grade 6- Fessenden School

Saltwater crocodiles

Alex MazzadiGrade 6 Fessenden School