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Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring. [1] It is observed in reptiles and teleost fish, with some reports of it occurring in species of shrimp. [2][3][4][5][6] TSD differs from the ...
Heat not only incubates the eggs, but also determines the sex of the developing caimans (temperature-dependent sex determination). When the temperature inside the nest is about 32 °C (90 °F) or higher, the caimans become female, and otherwise become male. [35] Young hatch after 90 days, [22] with 20–25 percent of eggs hatching successfully ...
A male crocodile lived to an estimated age of 110–115 years in a Russian zoo in Yekaterinburg. [80] Named Kolya, he joined the zoo around 1913 to 1915, fully grown, after touring in an animal show, and lived until 1995. [80] A male freshwater crocodile lived to an estimated age of 120–140 years at the Australia Zoo. [81]
The caiman does not have sex chromosomes, but instead depends on temperature to determine the ratio of male and female offspring. Eggs at warmer temperatures (32 °C (90 °F) or higher) develop into males and eggs at cooler temperatures (31 °C (88 °F) or lower) develop into females. [ 18 ]
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.
Melanosuchus niger— King & Burke, 1989. The black caiman (Melanosuchus niger) is a crocodilian reptile endemic to South America. With a maximum length of around 5 to 6 m (16 to 20 ft) and a mass of over 450 kg (1,000 lb), [ 6 ] it is the largest living species of the family Alligatoridae, and the third-largest crocodilian in the Neotropical ...
The temperature at which American alligator eggs develop determines their sex (see temperature-dependent sex determination). Studies have found that eggs hatched at a temperature below 88.7 °F (31.5 °C) or a temperature above 94.1 °F (34.5 °C) will produce female offspring, while those at a temperature between 90.5 and 92.3 °F (32.5 and 33 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 21 September 2024. Group of animals including lepidosaurs, testudines, and archosaurs This article is about the animal class. For other uses, see Reptile (disambiguation). Reptiles Temporal range: Late Carboniferous–Present Pre๊ ๊ O S D C P T J K Pg N Tuatara Saltwater crocodile Common box turtle ...