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  2. Fish anatomy - Wikipedia

    en.wikipedia.org/wiki/Fish_anatomy

    Distinctively, these fish have no jaws. [15] Cartilaginous fish such as sharks also have simple, and presumably primitive, skull structures. The cranium is a single structure forming a case around the brain, enclosing the lower surface and the sides, but always at least partially open at the top as a large fontanelle.

  3. Halibut - Wikipedia

    en.wikipedia.org/wiki/Halibut

    Halibut yield large fillets from both sides of the fish, with the small round cheeks providing an additional source of meat. [26] Halibut are often boiled, deep-fried or grilled while fresh. Smoking is more difficult with halibut meat than it is with salmon, due to its ultra-low fat content.

  4. Sabertooth fish - Wikipedia

    en.wikipedia.org/wiki/Sabertooth_fish

    Sabertooth fish are usually a drab, light to dark brown when preserved; however, a brassy green iridescence is seen on the flanks, cheeks, and ocular region of well-preserved specimens. The naked skin is easily torn.

  5. Fish - Wikipedia

    en.wikipedia.org/wiki/Fish

    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.

  6. Fish gill - Wikipedia

    en.wikipedia.org/wiki/Fish_gill

    The gill arches of bony fish typically have no septum, so that the gills alone project from the arch, supported by individual gill rays. Some species retain gill rakers. Though all but the most primitive bony fish lack a spiracle, the pseudobranch associated with it often remains, being located at the base of the operculum. This is, however ...

  7. Bubble Eye - Wikipedia

    en.wikipedia.org/wiki/Bubble_Eye

    It is a dorsal-less fish – good specimens will have a clean back and eye bubbles that match in color and size. Their bubbles are quite delicate, so the fish should be kept separately from boisterous types, as well as sharp tank decor. Although the bubbles will regrow if punctured, an injury could leave the fish prone to infections.

  8. Branchial arch - Wikipedia

    en.wikipedia.org/wiki/Branchial_arch

    Many fish have modified posterior gill arches into pharyngeal jaws, often equipped with specialized pharyngeal teeth for handling particular prey items (long, sharp teeth in carnivorous moray eels compared to broad, crushing teeth in durophagous black carp). In amphibians and reptiles, the hyoid arch is modified for similar reasons.

  9. Bluecheek butterflyfish - Wikipedia

    en.wikipedia.org/wiki/Bluecheek_butterflyfish

    The bluecheek butterflyfish is one of the few fish species to have long-term mates. [4] In the wild, the fish eats hard corals as well as benthic invertebrates. [5] This is a common species which is found in areas with rich coral growth. They are frequently recorded in pairs or in small shoals.