Fish that change sex

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When she dies, the most dominant male changes sex and takes her place. For example, coral gobies Gobiodon and Paragobiodon live within crevices inside coral reefs, move very little during their lifetimes, and have limited opportunity to find new mating partners. This is an example of protogyny, and is much more common that protandry changing from male to female. This is posited to take place in response to environmental or energetic constraints, and to improve the organism's evolutionary fitness; similar phenomena are observed in some dioecious plants. Genetic males with one X and one Y chromosome with androgen insensitivity syndrome AIS are resistant to androgens.

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Genetic males with one X and one Y chromosome with androgen insensitivity syndrome AIS are resistant to androgens.

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Fish are the sex-switching masters of the animal kingdom

The term may also refer specifically to sex reassignment surgerywhich usually refers to genital surgery only. A Case of Mistaken Gender Identity". Genetic females with two X chromosomes with congenital adrenal hyperplasia lack an enzyme needed by the adrenal gland to make the hormones cortisol and aldosterone. Watch the incredible moment a flying fish devours an unassuming bird on Blue Planet II. The right gonad, which has yet to be defined as an ovary, testes, or both called an ovotestistypically remains dormant. The water was very dark and there were often strong currents coming through. In it, a love-struck clown fish's wife dies and he is left to raise a child, Nemo, alone.

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