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The Chinese alligator split from the American alligator about 33 million years ago [8] 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. [9] The alligator's full mitochondrial genome was sequenced in the 1990s. [10]
The alligator gar (Atractosteus spatula) is a euryhaline ray-finned fish in the clade Ginglymodi of the infraclass Holostei / h oʊ ˈ l ɒ s t i aɪ /, being most closely related to the bowfins. It is the largest species in the gar family (Lepisosteidae), and is among the largest freshwater fish in North America .
An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae in the order Crocodilia. The two extant species are the American alligator (A. mississippiensis) and the Chinese alligator (A. sinensis). Additionally, several extinct species of alligator are known from fossil remains.
The spectacled caiman (Caiman crocodilus), also known as the white caiman, [6] common caiman, [7] and speckled caiman, [8] is a crocodilian in the family Alligatoridae.It is brownish-, greenish-, or yellowish-gray colored and has a spectacle-like ridge between its eyes, which is where its common name come from.
There is a common belief stated throughout reptilian literature that crocodilians, including the American alligator, exhibit indeterminate growth, meaning the animal continues to grow for the duration of its life. However, these claims are largely based on assumptions and observations of juvenile and young adult crocodilians, and recent studies ...
A Pennsylvania man who credits an alligator named Wally for helping relieve his depression for nearly a decade says he is searching for the reptile after it went missing during a vacation to the ...
Claude (hatched September 15, 1995) is an albino alligator (Alligator mississippiensis) at the California Academy of Sciences in San Francisco, California, United States. Claude lacks the pigment melanin , resulting in colorless skin, and he has poor eyesight associated with his albinism.
A study of the alligator in 1985 showed that snails were the most common animal in its diet at 63%, with 65% of that being river snails and 35% spiral-shelled snails. According to the survey, its diet also contained 16% rabbits , 8.3% mollusks , and 4.1% shrimp , with the remaining 6.8% being frogs, fish, and insects.