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The American alligator (Alligator mississippiensis), sometimes referred to as a gator or common alligator, is a large crocodilian reptile native to the Southeastern United States and a small section of northeastern Mexico. It is one of the two extant species in the genus Alligator, and is larger than the only other living alligator species, the ...
Alligator sinensis. † Alligator thomsoni. An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae of the order Crocodilia. The two extant species are the American alligator (A. mississippiensis) and the Chinese alligator (A. sinensis).
The American crocodile (Crocodylus acutus) is a species of crocodilian found in the Neotropics.It is the most widespread of the four extant species of crocodiles from the Americas, with populations present from South Florida, the Caribbean islands of Cuba, Jamaica, Hispaniola, [4] and the coasts of Mexico to as far south as Peru, Ecuador, Colombia, and Venezuela.
Only two states followed in the 1970s, but the ensuing decades saw nominations at a rate of almost one per year. State birds are more common, with all 50 states naming one, and they were adopted earlier, with the first one selected in 1927. Before their formal designation as state reptiles, Florida's alligator, Maryland's terrapin, and Texas's ...
The Chinese alligator split from the American alligator about 33 million years ago [2] and likely descended from a lineage that crossed the Bering land bridge during the Neogene. The modern American alligator is well represented in the fossil record of the Pleistocene. [4] The alligator's full mitochondrial genome was sequenced in the 1990s. [5]
American alligators can be almost as large, with males reaching 4.6 m (15 ft) in length and weighing over 500 kg (1,100 lb). [130] Unverified reports suggest lengths of up to 6 m (20 ft) for the black caiman and 5.84 m (19.2 ft) for the American alligator, reaching weights of over 1,000 kg (2,200 lb), but such lengths are probably exaggerated.
Alligatorinae is cladistically defined as Alligator mississippiensis (the American alligator) and all species closer to it than to Caiman crocodylus (the spectacled caiman). [ 7 ] [ 8 ] This is a stem-based definition for Alligatorinae, and means that it includes more basal extinct alligator ancestors that are more closely related to living ...
An American alligator and a Burmese python in Everglades National Park struggling in lock. Burmese pythons in the state of Florida are classified as an invasive species.They disrupt the ecosystem by preying on native species, outcompeting native species for food or other resources, and/or disrupting the physical nature of the environment.