from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical...

features of the fish, the fins, are composed of either bony or soft spines called rays which, with the exception of the caudal fins, have no direct connection...

Greek πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of...

other fluids. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation. Fins first evolved on fish as a means...

bony fish commonly referred to as lobe-finned fish. These vertebrates are characterised by prominent muscular limb buds (lobes) within their fins, which...

bones that support the base of the dorsal fin in fish are called pterygiophores. The main purpose of the dorsal fin is to stabilize the animal against rolling...

"Fish-Fin" is a designation or nickname given by Mayanist epigraphers (inscription scholars) to a personage whose undeciphered name-glyph appears in the...

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...

Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other...

Fin rot is a symptom of disease or the actual disease in fish. This is a disease which is most often observed in aquaria and aquaculture, but can also...

consumption of fish high in mercury. High concentrations of BMAA are present in shark fins. Because BMAA is a neurotoxin, consumption of shark fin soup and...

the tail fin. More specialized fish include movement by pectoral fins with a mainly stiff body, opposed sculling with dorsal and anal fins, as in the...

any) or appendages in the shape of fish fins. Many types of aquatic animals commonly referred to as "fish" are not fish in this strict sense; examples include...

schooling fish, small squid, or crustaceans, including copepods and krill. Mating takes place in temperate, low-latitude seas during the winter. Fin whales...

and large, flowing fins, the natural coloration of B. splendens is generally green, brown and grey, while the fins are short; wild fish exhibit strong colours...

Fin, FIN, or Fins may also refer to: Fish fin, an anatomical feature of fish Fin fish, fish that possess fins Fin whale (Balaenoptera physalus) Fin (2021...

[tiktaːlik]) is a monospecific genus of extinct sarcopterygian (lobe-finned fish) from the Late Devonian Period, about 375 Mya (million years ago), having...

cartilaginous fish) and the Osteichthyes (or bony fish). The bony fish evolved into two separate groups: the Actinopterygii (or ray-finned fish) and Sarcopterygii...

themselves, the fish are called fry. When, in addition, they have developed scales and working fins, the transition to a juvenile fish is complete and...

fifty fin rays along its ribbon-fin. These individual fin rays can be curved nearly twice the maximum recorded curvature for ray-finned fish fin rays during...

The flier (Centrarchus macropterus) is a species of freshwater ray-finned fish, a sunfish from the family Centrarchidae which is endemic to the southern...

skin. Ribbonfish possess all the characteristics of fish living at very great depths. Their fins especially, and the membrane connecting them, are of...

Exocoetidae are a family of marine ray-finned fish in the order Beloniformes, known colloquially as flying fish or flying cod. About 64 species are grouped...

(8 ft 2 in). The largest living bony fish (superclass Osteichthyes, which includes both ray-finned and lobe-finned fish) are the lesser known southern sunfish...

The fish has an elongated body with an anterior dorsal fin and pelvic fin, and an anal fin slightly larger than the dorsal fin. The caudal fin is fairly...

or to the now discredited belief that the fish "row" themselves through the water with their pelvic fins. The family name Regalecidae is derived from...

Shark finning is the act of removing fins from sharks and discarding the rest of the shark back into the ocean. This act is prohibited in many countries...

ribbonfish, and streamer fish. R. glesne is the world's longest ray-finned fish. Its shape is ribbon-like, narrow laterally, with a dorsal fin along its entire...

represents the fourth unpaired fin on the fish (the four unpaired fins are the caudal fin, dorsal fin, anal fin, and adipose fin), lending to the name tetra...

arrow worms (chaetognatha) undulate their finned bodies, not unlike fish. Nematodes swim by undulating their fin-less bodies. Some Arthropod groups can swim...