oceanic-zone:The Frilled Shark is a deep-water shark that sports many “primitive” features, leadi
oceanic-zone: The Frilled Shark is a deep-water shark that sports many “primitive” features, leading it to be dubbed a living fossil. Its name comes from the frilled appearance of its six pairs of gill slits. Visible are its approximately 300 teeth, with notable needle-like cusps and cusplets, suited for feeding on squid. Unlike most sharks, it is unique in having a long, slender, eel-like body, and unusual front-facing jaws, as opposed to the underslung jaws of most shark species. (source) -- source link
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