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The stoplight parrotfish is a protogynous hermaphrodite that shows full sexual dichromatism, meaning that it changes its sex from female to male during its lifespan, and its color changes with its sex change. [4] The sex change is most likely due to the control of hormones, in particular, 11-ketetestosterone (11-KT). [5]
The deimatic display (a rapid change to black and white with dark 'eyespots' and contour, and spreading of the body and fins) is used to startle small fish that are unlikely to prey on the cuttlefish, but use the flamboyant display towards larger, more dangerous fish, [65] and give no display at all to chemosensory predators such as crabs and ...
The fish's name comes from the Portuguese and Spanish bonito (there's no evidence of the origin of the name), identical to the adjective meaning 'pretty'. However, the noun referring to the fish seems to come from the low and medieval Latin form boniton, a word with a strange structure and an obscure origin, related to the word byza, a possible borrowing from the Greek βῦζα, 'owl'.
[1] [2] In terms of importance, the masculine gender is the default or unmarked, while the feminine gender is marked or distinct. [2] Many gender-related features are common across Romance languages. However, Spanish differs from other Romance languages, like French and Italian, in its kinship terms.
In Spanish, nouns not belonging to the class described above form another class of noun. [1] The gender of nouns in this other class are arbitrarily assigned. However, some general patterns help to predict the gender of nouns. [11] Notably, the endings of nouns give clues to their genders. For instance, nouns ending in -o are usually masculine.
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SpanishDict is a Spanish-American English reference, learning website, [1] and mobile application. [2] The website and mobile application feature a Spanish-American English dictionary and translator, verb conjugation tables, pronunciation videos, and language lessons. [3] SpanishDict is managed by Curiosity Media. [4]
Gonochorism has evolved independently multiple times. [8] It is very evolutionarily stable in animals. [9] Its stability and advantages have received little attention. [10]: 46 Gonochorism owes its origin to the evolution of anisogamy, [11] but it is unclear if the evolution of anisogamy first led to hermaphroditism or gonochorism.