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    Dorsal fin - Wikipedia

    • A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found in most fish, in mammals such as whales, and in extinct ancient marine reptiles such as ichthyosaurs. Most have … See more

    Functions

    The main purpose of the dorsal fin is usually to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (a… See more

    Structure

    A dorsal fin is a medial, unpaired fin that is located on the midline of the backs of some aquatic vertebrates. In development of the embryo in teleost fish, the dorsal fin arises from sections of the skin that form a caudal fin fold. Th… See more

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  2. A dorsal fin is classified as a medial, unpaired fin that is located on the midline of the backs of some aquatic vertebrates. In development of the embryo in teleost fish, the dorsal fin arises from sections of the skin that form a caudal fin fold.
    en.wikipedia.org/wiki/Dorsal_fin
    A dorsal fin is a fin on the back of most marine and freshwater vertebrates. The main function of the fin is to stabilize the animal against rolling and to help sudden turns. There are some secondary functions: some fish have dorsal fins which produce venom at the tip, for example, the spiny dogfish.
    simple.wikipedia.org/wiki/Dorsal_fin
    The dorsal fins are located on the back. A fish can have up to three dorsal fins. The dorsal fins serve to protect the fish against rolling, and assist it in sudden turns and stops. In anglerfish, the anterior of the dorsal fin is modified into an illicium and esca, a biological equivalent to a fishing rod and lure
    en.wikipedia.org/wiki/Fish_fin
    Most fish have two kinds of fins: median and paired. Median fins are single fins that run down the midline of the body. The dorsal fin is a median fin located on the dorsal side of the fish. The anal fin and caudal fin are also median fins. Paired fins are arranged in pairs, like human arms and legs.
    manoa.hawaii.edu/exploringourfluidearth/biological/…
     
  3. Fish fin - Wikipedia

    Dorsal fin of a chub (Squalius cephalus) The dorsal fins are located on the back. A fish can have up to three dorsal fins. The dorsal fins serve to protect the fish against rolling, and assist it in sudden turns and stops. In anglerfish, the …

     
  4. Fish anatomy - Wikipedia

    Dorsal fins: Located on the back of the fish, dorsal fins serve to prevent the fish from rolling and assist in sudden turns and stops. Most fishes have one dorsal fin, but some fishes have two or three.

  5. Dorsal fin - Simple English Wikipedia, the free …

    A dorsal fin is a fin on the back of most marine and freshwater vertebrates. The main function of the fin is to stabilize the animal against rolling and to help sudden turns. There are some secondary functions: some fish have dorsal fins which …

  6. FishBase Glossary

  7. Dorsal Fin - A-Z Animals

    May 27, 2024 · A dorsal fin is a type of fin present on the backs of most types of aquatic (both freshwater and marine) vertebrate animals, most notably fish and aquatic mammals like whales and dolphins. A fin is a thin, often somewhat …

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  9. Understanding Shark Fins & Types (Dorsal Fin, …

    Sharks all have a pair of dorsal fins, a pair of pectoral fins, a pair of ventral fins, and a caudal fin. Some different species of shark also have a singular anal fin. Understanding how to recognize each type of fin and how they help a shark …

  10. 12 Different Dolphin Dorsal Fins - Clearwater Marine …

    Apr 14, 2017 · Like a human fingerprint, no two dorsal fins are the same. Each dorsal fin has its own unique shape, height, thickness, markings and notches. In addition, a dolphin’s dorsal fin acquires various scars and markings during the …

  11. Understanding Shark Fins & Types – sharksinfo.com

    The dorsal fin is the fin located on the back of the shark, and it is the most recognizable fin of a shark. The dorsal fin serves several purposes, including providing stability and balance while swimming, steering, and making sharp …

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  12. Shark anatomy - Wikipedia

    Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift, and guidance. The members of the order Hexanchiformes …

  13. What Is a Dolphin’s Dorsal Fin Used For? - Clearwater …

    May 17, 2019 · The dorsal fin helps us identify dolphins in our photo ID survey, but let’s think about how it functions to serve a dolphin. The placement of the dorsal fin is thought to stabilize the dolphin in the water like a keel on a boat. …

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  14. Dorsal fin Definition & Meaning - Merriam-Webster

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