Alligator
An alligator is a
crocodilian in the genus
Alligator of the
family Alligatoridae. There are two living alligator species: the
American Alligator and the
Chinese Alligator . They are closely related to
crocodiles. The name
alligator is an anglicized form of the
Spanish el lagarto , the name by which early
Spanish explorers and settlers in
Florida called the alligator.
Encyclopedia
An
alligator is a
crocodilian in the genus
Alligator of the
family Alligatoridae. There are two living alligator species: the
American Alligator and the
Chinese Alligator . They are closely related to
crocodiles. The name
alligator is an anglicized form of the
Spanish el lagarto , the name by which early
Spanish explorers and settlers in
Florida called the alligator.
Description
Alligators are characterized by a broader
snout and eyes more dorsally located than their crocodile cousins. Both living species also tend to be darker in color, often nearly black Also, in alligators only the upper teeth can be seen with the jaws closed , though many individuals bear jaw deformities which complicate this means of identification.
The eyes of an alligator glow red when a light is shined on them. This fact can be used to find alligators in the dark.
According to the
Everglades National Park website, the largest alligator ever recorded in
Florida was 17 feet 5 inches long . The largest alligator ever recorded measured 19 feet 2 inches and was found on Marsh Island,
Louisiana. Few of the giant specimens were weighed, but the larger ones could have exceeded a ton in weight.
Habitat
There are only two countries on earth that have alligators: the United States and China. The Chinese alligator is endangered and lives only in the Yangtze River valley. The American Alligator is found in the United States from the Carolinas to Florida and along the Gulf Coast. The majority of American Alligators inhabit Florida and Louisiana. In Florida alone there are an estimated more than 1 million alligators. The United States is the only nation on earth to have both alligators and crocodiles. American Alligators live in
freshwater environments, such as
ponds,
marshes,
wetlands,
rivers, and
swamps. In China, they live only along the fresh water of the Yangtze River.
Behavior
Alligators are solitary, territorial animals. The largest of the species , will defend prime territory; smaller alligators have a higher tolerance of other alligators within a similar size class.
Although alligators have heavy bodies and slow
metabolisms, they are capable of short bursts of speed that can exceed 30 miles per hour. Alligators' main prey are smaller animals that they can kill and eat with a single bite. Alligators may kill larger prey by grabbing it and dragging it in the water to drown. Alligators consume food that cannot be eaten in one bite by allowing it to rot or by biting and then spinning or convulsing wildly until bite size pieces are torn off. This is referred to as the "death roll."
Diet
Alligators are opportunistic feeders, eating almost anything they can catch. When they are young they eat fish, insects, snails, and crustaceans. As they grow they take progressively larger prey items, including: larger fish such as
gar, turtles, various mammals, birds, and other reptiles. They will even consume
carrion if they are sufficiently hungry. Adult alligators can take razorbacks and deer and are well known to kill and eat smaller alligators. In some cases, larger alligators have been known to hunt the Florida panther and bears, making it the apex predator throughout its distribution. As humans encroach onto to their habitat, attacks on humans are not unknown, but few. Alligators, unlike the large crocodiles, do not immediately regard a human upon encounter as prey.
Unfortunately, human deaths caused by alligators have increased. While there were only 9 fatal attacks in the U.S.A. from the 1970s to the 1990s, 11 people were killed by alligators from 2001 to 2006. More deaths occurred in this 5-year period than did in the previous 30. For a long time people have been taught that alligators fear humans, which is true, but this has led some people to be foolhardy and enter the animal's habitat in ways that provoke aggression.
Reproduction
Alligators are seasonal breeders. The mating season is in spring when the water warms. The female builds a nest of vegetation that rots, incubating the eggs. The mother will defend the nest from
predators and will assist the babies to water once they hatch. She will provide protection to the young for about a year if they remain in the area.
Gallery
See also
- List of fatal alligator attacks in the United States by decade
References
External links
