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CrocodiliansProfile 447

Saltwater Crocodile

Crocodylus porosus

Up to 23-foot apex archosaur, and the species behind the highest bite force measured in any animal: 3,689 pounds.

Danger tierExtremeSevere injury likely on contact.
IUCN status [LC]Least ConcernPopulation stable and widespread in natural habitats.Source: IUCN Red List
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Field
notes

Checked against 7 sources ↓

Overview

The Saltwater Crocodile (Crocodylus porosus) is the largest living reptile on Earth, with adult males reaching up to 7 meters (23 feet) and 1,000 to 1,200 kilograms (over 2,200 pounds). It belongs to the crocodilians, a group that has dominated predatory niches at the water’s edge for over 85 million years. Critical to that success was a skull-and-muscle system built for high bite forces: once it evolved, its relative force capacity went essentially unchanged as the group diversified. It usually hunts by ambush, hiding in the water with only its nostrils, eyes and part of its back showing, then lunging out when prey comes close.

Habitat & Biology

Inhabits estuaries, rivers, and coastal waters across Northern Australia, Southeast Asia, and the eastern Indian subcontinent.

Musical Pairing & Sonic Spirit

Matched with Meshuggah’s “Bleed”: the crushing mechanical polyrhythms, relentless double-bass drive, and unrelenting technical aggression mirror the crocodile’s calculated ambush and devastating death roll.

Fun Facts

  • Delivers the highest bite force measured in any animal: one individual in a 2012 study bit down with 16,414 newtons of force, about 3,689 pounds.
  • It lives in both fresh water and waterways saltier than the sea, and keeps its body’s salt balance steady by pushing excess sodium and chloride out through salt glands on its tongue.
  • At sea, the direction satellite-tagged crocodiles travelled closely matched the direction of the surface current. Riding currents lets them move quickly and efficiently over long distances.
  • Sense organs packed into its jaws and body scales pick up water movements, including the ripples prey make at the surface, and help tell it when to bite on direct contact with prey.

Published Updated

Traits

Intel
& FAQ

01Does the saltwater crocodile have the strongest bite force ever measured?

Yes. A 2012 study that measured adult bite force across all 23 crocodilian species recognised at the time recorded one Crocodylus porosus individual biting down with 16,414 newtons of force, about 3,689 pounds. The researchers called it the highest bite force measured in any animal.

Source: Erickson et al. 2012

02What is the crocodile death roll used for?

To subdue and dismember prey. Crocodilians, alligators included, spin rapidly around the long axis of the body in what's called the death roll. A study that filmed young alligators, averaging 0.29 meters long, biting onto a pliable target found they pressed their legs against the body and bent the head and tail at an angle to it, then spun at 1.6 rotations per second. The spin comes purely from conservation of angular momentum. The researchers concluded the roll appears to help alligators get around the limits of their feeding anatomy, and predicted that the shearing force it generates grows disproportionately with an alligator's size, allowing dismemberment of large prey.

Source: Fish et al. 2007

03How do saltwater crocodiles travel such long distances across open water?

By riding the current. Its range reaches oceanic islands such as Palau, Vanuatu and the Solomon Islands, which suggests individuals make sizeable ocean voyages. A 2010 study tracked adults with acoustic tags along 63 km of river and with satellite tags at sea. In the river, crocodiles on long journeys in one direction, of more than 10 km a day, travelled only when the current flowed their way, staying at the surface, and dived to the riverbed or climbed out onto the bank when it turned against them. At sea, the direction the tagged crocodiles travelled closely matched the direction of the surface current. Riding surface currents dramatically increases their travel potential, the study concluded.

Source: Campbell et al. 2010

Guess
first

How big is a Saltwater Crocodile, really? Slide, lock in, and see what the sources say. Every answer is a figure from this page, quoted from where it came from.

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Sources

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