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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 ...
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 mugger crocodile (Crocodylus palustris) is a medium-sized broad- snouted crocodile, also known as mugger and marsh crocodile. It is native to freshwater habitats from southern Iran to the Indian subcontinent, where it inhabits marshes, lakes, rivers and artificial ponds. It rarely reaches a body length of 5 m (16 ft 5 in) and is a powerful ...
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.
Crocodilia (or Crocodylia, both / krɒkəˈdɪliə /) is an order of semiaquatic, predatory reptiles known as crocodilians. They first appeared during the Late Cretaceous and are the closest living relatives of birds. Crocodilians are a type of crocodylomorph pseudosuchian, a subset of archosaurs that appeared about 235 million years ago and ...
Most reptiles are also cold-blooded, so they’re unable to regulate their own body temperature. Instead, they rely on external heat sources like the sun or the best reptile heating pads to do so.
Although the female guards the nest for 80 to 98 days (in extreme high and low cases from 75 to 106 days), the loss of eggs is often high due to flooding and occasionally to predation. [50] As in all crocodilians, the sex of the hatchlings is determined by temperature.