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Alligator mississippiensis
American Alligator (Alligator mississippiensis) revealing its enormous mouth, teeth and gullet. This "jaws agape" behavior is thought to be used to regulate body temperature. << Adult male alligators average 11.2 ft (3.4 m) in length, while adult females average 8.2 to 9.8 ft (2.5 to 3.0 m). Average adult body weights are reported from 270 to 800 lb (120 to 360 kg), with a few exceptionally large and old males exceeding 14 ft (4.3 m) and 1,000 pounds (450 kg). ... American Alligators have the strongest laboratory measured bite of any living animal, measured at up to 9,452 newtons (2,125 lbf) in laboratory conditions. >>
Wetlands: Anhinga Trail, Everglades National Park, Florida.
The American alligator (Alligator mississippiensis), sometimes referred to colloquially as a gator, is a reptile endemic only to the Southeastern United States. It is one of the two living species of alligator, in the genus Alligator, within the family Alligatoridae. It is larger than the other extant alligator species, the Chinese alligator. The American alligator inhabits wetlands that frequently overlap with human-populated areas. The American alligator has a large, slightly rounded body, with thick limbs, a broad head, and a very powerful tail. Adult Alligators generally have dark gray or nearly black color. They may at times appear to be lighter based on detritus or algae in the water covering their skin. Juvenile alligators have a striped pattern for camouflage that they lose as they mature. Averaging about 9.5 in (24 cm) in length when newly hatched, alligators reach sexual maturity when they measure about 5–7 ft (1.5–2.1 m). Adult male alligators average 11.2 ft (3.4 m) in length, while adult females average 8.2 to 9.8 ft (2.5 to 3.0 m). Average adult body weights are reported from 270 to 800 lb (120 to 360 kg), with a few exceptionally large and old males exceeding 14 ft (4.3 m) and 1,000 pounds (450 kg). One American Alligator reached a length of 19 feet 2 inches (5.84 m) and 2,200 lb (1,000 kg), which made it not only the largest alligator ever recorded, but also among the largest crocodilians on record. The tail, which accounts for half of the alligator's total length, is primarily used for aquatic propulsion. The tail can also be used as a weapon of defense when an alligator feels threatened. Alligators travel very quickly in water and while they are generally slow-moving on land, alligators can lunge short distances very quickly. They have five claws on each front foot and four on each rear foot. American Alligators have the strongest laboratory measured bite of any living animal, measured at up to 9,452 newtons (2,125 lbf) in laboratory conditions. It should be noted that this experiment has not (at the time of the paper published) been replicated in any other crocodilians. American alligators are mostly found in the Southeastern United States, from Great Dismal Swamp in North Carolina south to Everglades National Park in Florida and west to the southern tip of Texas. They are found in the U.S. states of North Carolina, South Carolina, Georgia, Florida, Louisiana, Alabama, Mississippi, Arkansas, Texas, and Oklahoma. Florida and Louisiana currently have the largest population of alligators. Florida has an estimated population of 1 to 1.5 million while Louisiana has an estimated population of 1.5 million Although primarily freshwater animals, alligators will occasionally venture into brackish water. Alligators live in wetlands and this is the vital habitat that holds the key to their continued long-term survival. Alligators depend on the wetlands, and in some ways the wetlands depend on them. As apex predators, they help control the population of rodents and other animals that might overtax the marshland vegetation. American alligators are less prone to cold than American crocodiles. Unlike the American crocodile, which would immediately succumb to the cold and drown in water of 45 °F (7.2 °C), an alligator can survive in such temperatures for some time without any signs of evident discomfort. It is thought that this adaptiveness is the reason why American alligators spread farther north than the American crocodile. In fact, the American alligator is found farther from the equator and is more equipped to deal with cooler conditions than any other crocodilian. In Florida, alligators face ambient temperature patterns unlike elsewhere in their range. The consistently high temperatures lead to increased metabolic cost. Alligators in the Everglades have reduced length to weight ratio, reduced total length, and delayed onset of sexual maturity compared with other parts of their range. The reason for this poor condition is currently suspected to be a combination of low food availability and sustained high temperatures. Alligators reach breeding maturity at about 6 to 10 years of age, at which time they are about 6 to 7 feet (1.8–2.1 m) long. From then on, growth continues at a slower rate. The oldest males may grow to be 16 feet (4.85 m) long and weigh up to 1,200 pounds (510 kg) during a lifespan of 30 or more years. The breeding season begins in the spring. Although alligators have no vocal cords, males bellow loudly to attract mates and warn off other males during this time by sucking air into their lungs and blowing it out in intermittent, deep-toned roars. Male alligators are also known to use infrasound during their mating behavior, as one of their routines is to engage in bellowing in infrasound while their head and tail are above the water, with their midsection very slightly submerged, making the surface of the water that is directly over their back literally "sprinkle" from their infrasound bellowing, in a so-called "water dance". Recently it was discovered that on spring nights alligators gather in large numbers for group courtship, the so-called "alligator dances". The female builds a nest of vegetation, sticks, leaves, and mud in a sheltered spot in or near the water. After she lays her 20 to 50 white, goose egg-sized eggs, she covers them under more vegetation, which, like mulch, heats as it decays, helping to keep the eggs warm. The young are tiny replicas of adult alligators with a series of yellow bands around their bodies. They find their way to water after hatching. For several days they continue to live on yolk masses within their stomachs. The baby spends about five months with the mother before leaving her. Snapping turtles, large snakes, raccoons, largemouth bass, American black bears, large raptorial birds such as great horned owls and bald eagles and even larger alligators prey upon young alligators. The adult alligator may grow up to prey upon many of the same species. (credit: http://en.wikipedia.org/wiki/American_al......)
21 Comments
blaise, chebeague2 - Thanks!
chebeague2,
I checked out your Alligators... they're great! The big group of babies must have been fun to observe - and feed.
I've been keeping an eye on a family group - a mother and her babies/juveniles in a drainage pond since end of Jan. It's nice to watch them get bigger each time I see them...
if you go to my site you can see my gators!
Nopayahnah,
Just missed your comment...
Thank you so much. Glad you like the updates also...
It's rewarding to get recognition for doing something I enjoy...
Congratulations and your updates are interesting!
Carol,
Thank you very much... you're very kind.
Gotta keep the PN community up to date on my alligator buddies... even if it means their bite is has dropped down in status.
Look Mom! No cavities! WOW! And all that detailed information. You deserve this awesome recognition. Congrats! And thanks for the update.
An Alligator update:
March 15, 2012 - Florida’s fearsome lord of the swamps, the American alligator, ranks sixth in the world in the power of its bite. The strongest bite belongs to the saltwater crocodile, a Pacific ocean species that crunches down with 3,700 pounds of pressure, according to a new study led by Florida State University biology professor Greg Erickson, whose team strapped down 83 alligators and crocodiles and placed measuring devices between their teeth. The American alligator bit with a force of 2,980 pounds. Although this ranked fifth among the species tested, Erickson said it really ranks sixth, behind the American crocodile, a rare species for which he was unable to test the largest specimens. The study was published in the journal PLoS One. (credit: http://articles.sun-sentinel.com/2012-03......)
Yasser,
Thank you so much for the recognition... I feel honored.
Everyone,
Thank you for your congratulatory wishes and comments; they are very much appreciated. I've since learned that this behavior is to help regulate their body temperature - similar to a dog panting. Jack
congrats !
Amazing spotting. Congrats!
Great Spotting .. Cngrts Jack !!
Congratulations Jack
Congratulations Jack! Well deserved SOTD!
Congrats!! Beautifully captured!
Congrats Jack! This gator was chosen as Spotting of the Day!
"American Alligators have the strongest laboratory measured bite of any living animal, measured at up to 9,452 newtons (2,125 lbf) in laboratory conditions."
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Wonderful timing! Not often you can catch them with their mouths this wide open.
Wow was my first reaction, too!
How did you get him to pose with his Mouth open?
Wow is right!
Awesome!
Wow, , ,