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The rostral teeth grow in size throughout the life of the sawfish and a tooth is not replaced if it is lost. [39] [40] In Pristis sawfish, the teeth are found along the entire length of the rostrum, but, in adult Anoxypristis, there are no teeth on the basal one-quarter of the rostrum (about one-sixth in juvenile Anoxypristis).
Hydrocynus goliath is a piscivore, feeding on any fish it can overpower, including smaller members of the same species. Their huge, powerful, rigid teeth make them one of the most ferocious predators of the Congo basin, dangerous for the smaller fish they prey on as well as for the hunters who attempt to capture them for sport and for food.
Ranging in color from dark gray to dark brown, deep-sea species have large heads that bear enormous, crescent-shaped mouths full of long, fang-like teeth angled inward for efficient prey-grabbing. Their length can vary from 2–18 cm (1–7 in), with a few types getting as large as 100 cm (39 in), [ 15 ] but this variation is largely due to ...
The teeth sit outside of the mouth, interlocking, with two large lower fangs that curl upward reaching past the fish’s eyes. Because its jaw can unhinge, the viperfish can eat large prey for its ...
The golden dorado has a large head, with powerful jaws filled with sharp teeth. [3] Adults are yellow-golden in color, but juveniles are more silvery. [5] Immatures (to a lesser extent adults) resemble Brycon hilarii and Salminus hilarii.
Rare deep-sea fish with 'needle-sharp teeth' washes ashore. A rare fish with menacing features washed up on a San Diego, Calif. shore in early December. The beachgoer who first uncovered it said ...
Piranha in Venezuela with its jaws held open to show its distinctive sharp teeth. Piranhas belong to the family Serrasalmidae, which includes closely related omnivorous [8] fish such as pacus. [9] Traditionally, only the four genera Pristobrycon, Pygocentrus, Pygopristis, and Serrasalmus are
The narrow sawfish (Anoxypristis cuspidata), also known as the pointed sawfish or knifetooth sawfish, is a species of sawfish in the family Pristidae, part of the Batoidea, a superorder of cartilaginous fish that include the rays and skates. Sawfish display a circumglobal distribution in warm marine and freshwater habitats.