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    https://en.wikipedia.org › wiki › Electric_ray

    Electric ray - Wikipedia

    • The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, composing the order Torpediniformes /tɔːrˈpɛdɪnɪfɔːrmiːz/. They are known for being capable of producing an electric discharge, ranging from 8 to 220 volts, depending on species, used to stun prey and for defense. There are 69 species in four families. Perhaps the best kno… See more

    Description

    Electric rays have a rounded pectoral disc with two moderately large rounded-angular (not pointed or hooked) dorsal fins (reduced in some Narcinidae), and a stout muscular tail with a well-developed caudal fin. The body is thic… See more

    Relationship to humans

    The electrogenic properties of electric rays have been known since antiquity, although their nature was not understood. The ancient Greeks used electric rays to numb the pain of childbirth and operations. In his dialogue … See more

    Electric ray | Marine, Torpedo, Cartilaginous | Britannica
    Electric ray, any of the rays of the families Torpedinidae, Narkidae, Narcinidae, and Hypnidae, named for their ability to produce electrical shocks. They are found worldwide in warm an…
    Britannica · https://www.britannica.com/anima…
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