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Bearded dragons exhibit temperature sex determination; while the embryo is developing, higher temperatures cause dragons with a male genotype to experience sex reversal and express a female phenotype. This produces a bearded dragon that is a female, but still has a male genotype.
However, a female bearded dragon can retain sperm, and thus produce fertile eggs even after being separated from a male. Courtship involves the male "head bobbing" to display dominance. If the female displays submissive behaviour, the male will use his mouth to grab the back of the female's head and the male will also wrap his front legs around ...
The eastern bearded dragon (Pogona barbata), also known as common bearded dragon or simply bearded lizard, is an agamid lizard found in wooded parts of Australia. [ 1 ] [ 2 ] [ 3 ] It is one of a group of species known commonly as bearded dragons .
Most commonly, domesticated bearded dragons are bred from the Central bearded dragon and the inland bearded dragon. "The Central bearded dragon (Pogona vitticeps), Western bearded dragon (Pogona ...
"The Central bearded dragon (Pogona vitticeps), Western bearded dragon (Pogona minor), and Eastern bearded dragon (Pogona barbata) can all make good pets with the right care.Other types of bearded ...
In species with a ZW sex chromosome system, such as central bearded dragons (Pogona vitticeps), sex reversal produces ZZf females. That subsequent loss of the W chromosome in those individuals eventually leads to the loss of the W chromosome in the population, shifting the species towards temperature-dependent sex determination.
A 2015 study found that hot temperatures altered the expression of the sex chromosomes in Australia's bearded dragon lizards. The lizards were female in appearance and were capable of bearing offspring, despite having the ZZ chromosomes usually associated with male lizards. [19]
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