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The males do not have to compete with other males, and female anemone fish are typically larger. When a female dies a juvenile (male) anemone fish moves in, and "the resident male then turns into a female and reproductive advantages of the large female–small male combination continue". [22] In other fishes sex changes are reversible. For ...
Phenotypic differences between sexes are evident even in cultured cells from tissues. [132] For example, female muscle-derived stem cells have a better muscle regeneration efficiency than male ones. [133] There are reports of several metabolic differences between male and female cells [134] and they also respond to stress differently. [135]
The male and female are the only sexually mature fish to reproduce. Clownfish are protandrous hermaphrodites, which means after they mature into males, they eventually can transform into females. They develop undifferentiated until they are needed to fill a certain role in their environment, i.e., if they receive the social and environmental ...
However, the study found that there was no difference in blue and brown female lingcod regarding parasite burden despite blue coloration being more common in females. The discrepancy in the burden of parasites between male and female lingcod may be because male vertebrates' immune systems are typically less effective than females since male sex ...
When a male finds a female, he bites into her skin, and releases an enzyme that digests the skin of his mouth and her body, fusing the pair down to the blood-vessel level. [36] The male becomes dependent on the female host for survival by receiving nutrients via their shared circulatory system, and provides sperm to the female in return.
When a female dies a juvenile (male) anemone fish moves in, and "the resident male then turns into a female and reproductive advantages of the large female–small male combination continue". [25] In other fishes sex changes are reversible. For example, if some gobies are grouped by sex (male or female), some will switch sex. [4]: 164 [24]
If the male fish dies, the strongest female changes its sex to become the male for the group. All of these wrasses are born female, and only become male in this situation. Other species, like clownfish, do this in reverse, where all start out as non-reproductive males, and the largest male becomes a female, with the second-largest male maturing ...
Although pairs are difficult to find because the difference between male and female is not visible, they are very easy to breed. With males usually being larger than females, the male will build the nest among rocks using pieces of algae. [5] The male will then lead the female to the nest, where she will deposit 20–100 eggs in the nest.