Description: The
iconic American Alligator is one of two species
of alligator in existence. The other is the smaller
Chinese Alligator. These animals are relics from
the past and their ancestors date back at least
150 million years. The American Alligator can grow
to 15 feet in length and weigh up to 1,000 pounds.
Females are considerably smaller. The tail of the
alligator accounts for about half of its total
length and aids in swimming, or, is used for defense.
Alligators have rounded bodies, thick arms and
legs, and a large head. Their bodies are covered
with armored plates known as osteoderms or scutes.
They are usually dark gray, olive green, or black
in coloration. Juvenile alligators have striped
tails. These reptiles are often observed completely
submerged except for the snout, which allows them
to breathe while under water. Sometimes during
cold weather, the alligator will enter a period
of dormancy with its nostrils above the water's
surface and the rest of the body encased in ice!
Alligator holes, burrows dug in vegetation by alligators,
are invaluable sources of water for many species
of animals during extended dry periods. Did you
know that a group of alligators is called a congregation?
Diet: The American Alligator
is an opportunistic hunter and will eat just about
anything it can catch including wading birds such
as herons and egrets, fish, turtles, small mammals,
deer, raccoons, and other animals. Hatchlings and
younger crocodiles eat insects, snails, and invertebrates.
The alligator hunts by ambushing prey as it enters
the water. Large prey is seized in the alligator's
jaws and dragged underwater and drowned.
Habitat/Range: The American Alligator
inhabits freshwater swamps, marshes, rivers, canals,
and ponds. It is found exclusively in the southeastern
United States from the coast of northern North
Carolina, south to the Florida Everglades and west
to eastern Texas.
Breeding: Males compete vigorously
for the rights to mate with females by bellowing
and chasing other males out of their territories.
Male alligators are polygamous and mate with multiple
females. Alligators reach reproductive age between
the ages of 10-12. Mating usually occurs in May.
The female builds a nest out of vegetation and
lays between 35-80 eggs in late June or early July.
After an incubation period of about two months,
the eggs hatch. Temperature determines the gender
of the alligators. If the eggs are incubated in
temperatures between 82 and 86 degrees Fahrenheit,
the young will be female, those incubated from
90 to 93 degrees will be male. Those incubated
from 87-89 degrees produce a mixture of males and
females. Most of the young alligators will fall
victim to raccoons, birds, and snakes, despite
the mother's best efforts to defend them. Males
provide no parental care, and females generally
will watch over their young for about one year.
Status: American Alligators were
formerly hunted to the brink of extinction for
their skins, before being listed as an endangered
species in 1967. Since 1967, alligator populations
are considered fully recovered and the species
is once again a common sight in wetlands of the
south. The species was taken off the endangered
species list in 1987. |