American Crocodile

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American crocodile
American Crocodile in Jalisco, Mexico
Conservation status
Vulnerable (IUCN)
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Crocodilia Family: Crocodylidae Subfamily: Crocodylinae Genus: Crocodylus Species: C. acutus
Binomial name
Crocodylus acutus (Cuvier, 1807)

The American Crocodile (Crocodylus acutus) is one of the 4 species of New World crocodile and the most wide-spread in range. It occurs from the Atlantic and Pacific coasts of southern Mexico through Central America and in South America as far as Peru and Venezuela. It also breeds on Cuba, Jamaica, and Hispaniola, and there is a remnant population of approximately 2,000 in Florida, United States.

The habitat of the American crocodile consists largely of freshwater or brackish water coastal habitats, and mangrove swamps. The American crocodile is one of the largest crocodile species, with males reaching lengths of roughly 5 meters (16.4 feet)^[1].

Contents 1 Physical characteristics 2 Population 3 References 4 External links

[edit] Physical characteristics

Like all crocodiles it is a quadruped, with four short, splayed legs; a long, powerful tail; a scaly hide with rows of ossified scutes running down its back and tail; and mighty jaws. It has nictitating membranes to protect its eyes, and, despite the myths, it does have lachyrmal glands, and can cleanse its eyes with tears.

The nostrils, eyes, and ears are situated on the top of its head, so the rest of the body can remain concealed underwater. The coloration also helps them hide.^{[citation needed]}

American crocodiles normally crawl along on their belly, but they can also "high walk". Smaller specimens can gallop, and even larger crocodiles are capable of surprising bursts of speed. They can swim equally fast by moving their body and tail in a sinuous fashion, but they can't sustain this form of movement very long.

They have a four-chambered heart, like a bird, which is especially efficient at oxygenating their blood. They normally dive for only a couple of minutes, but will stay underwater for up to 30 minutes if threatened, and if they remain inactive they can hold their breath for up to 2 hours.^{[citation needed]} They have an ectothermic metabolism, so they can survive a long time between meals — though when they do eat, they can eat up to half their body weight at a time.^{[citation needed]}

Due to hide hunting, pollution, loss of mangrove habitat, and removal of adults for commercial farming, the American Crocodile is endangered in parts of its range.

[edit] Population

The American crocodile has an estimated wild population of 2000 in South Florida where it's status has been recently upgraded from endangered to threatened[2], and 10,000 to 20,000 worldwide^{[citation needed]} individuals.

On March 20, 2007 The U.S. Fish and Wildlife Service declassified the American crocodile as an endangered species. The reptile remains protected from illegal harassing, poaching or killing under the federal Endangered Species Act even though it has been downgraded to 'threatened'. ^[2] 10,000 to 20,000 American crocodiles exist worldwide ^[3]

[edit] References

1. ^ American crocodile factsheet
2. ^ American Crocodile No Longer Near Extinction. March 21, 2007.
3. ^ [1]. American crocodile back from the brink

• Crocodile Specialist Group (1996). Crocodylus acutus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Listed as Vulnerable (VU A1ac v2.3)

[edit] External links

• ARKive images and movies of the American crocodile (Crocodylus acutus)
• University of Florida's crocodile research in Southwest Florida
• National Parks Conservation Association