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American alligators do not normally reach such extreme sizes. In mature males, most specimens grow up to about 3.4 m (11 ft 2 in) in length, and weigh up to 360 kg (790 lb), [7] while in females, the mature size is normally around 2.6 m (8 ft 6 in), with a body weight up to 91 kg (201 lb).
Alligators and caimans split in North America during the early Tertiary or late Cretaceous (about 53 million to 65 million years ago). [4] [5] The Chinese alligator split from the American alligator about 33 million years ago [4] and probably descended from a lineage that crossed the Bering land bridge during the Neogene.
Alligator eggs typically hatch “from mid-August through early September,” suggesting the five alligators were 2 to 3 months old. Alligators can reach more than 14 feet in length and 1,000 ...
A year after the 2007 release, 16 young alligators were found living in the wild. 60 alligator eggs were observed in 2016, distributed in three nests at a wetland park. Although a typhoon in September the same year flooded and eliminated two of the nests, three hatchlings were found in the same area several days after. [64]
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Large alligators do not recognize the difference between domestic pets and wild food sources. It is best to avoid swimming in areas that are known habitats for large alligators but at the least ...
The mammals included are only viviparous (marsupials and placentals) as some mammals, which are monotremes (including platypuses and echidnas) lay their eggs. A marsupial has a short gestation period, typically shorter than placental. For more information on how these estimates were ascertained, see Wikipedia's articles on gestational age.
Egg production is variable, and believed to be dependent on the size of the female. A common formula used for predicting the number of eggs a female can produce is 4.1 eggs/gram of body weight, which gives an average of about 150,000 eggs per spawn. The eggs of alligator gar are bright red and poisonous to humans if ingested. [20]