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Close-up of fish melanophores. Fish coloration is produced through specialized cells called chromatophores. The dermal chromatophore is a basic color unit in amphibians, reptiles, and fish which has three cell layers: "the xanthophore (contains carotenoid and pteridine pigments), the iridophore (reflects color structurally), and the melanophore (contains melanin)". [5]
The ability of animals including fish, lizards and frogs to change their colours quickly is discussed. The changing of the pelage of arctic animals is attributed to the indirect effect of the change in temperature, i.e. a physiological response not a simple physical effect. Chapter 8 Variable Protective Resemblance In Insects.
Animal coloration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see. In some species, such as the peafowl, the male has strong patterns, conspicuous colours and is iridescent, while the female is far less visible.
The term "person of color" (pl.: people of color or persons of color; abbreviated POC) [1] is primarily used to describe any person who is not considered "white".In its current meaning, the term originated in, and is primarily associated with, the United States; however, since the 2010s, it has been adopted elsewhere in the Anglosphere (often as person of colour), including relatively limited ...
Aposematism is the advertising by an animal, whether terrestrial or marine, to potential predators that it is not worth attacking or eating. [1] This unprofitability may consist of any defenses which make the prey difficult to kill and eat, such as toxicity, venom , foul taste or smell, sharp spines, or aggressive nature.
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
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The walleye is considered to be a quite palatable freshwater fish, and consequently, is fished recreationally and commercially for food. [17] Because of its nocturnal feeding habits, it is most easily caught at night using live minnows or lures that mimic small fish.