do all fish have teeth?
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All fish have teeth. Specific types of swimmers—like goldfish—hide their pearly whites near the back of their throats. Similar to shark teeth, goldfish lose and replace teeth throughout their lifetime.
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['Live in water their entire lives.', 'Vertebrates have a backbone, and some cartilaginous fish have vertebrae made of cartilage rather than calcium-hardened bone.', 'Gills, which are slits on both sides of fish that allow for respiration, or the exchange of oxygen and carbon dioxide.']
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No, most fish are neither mammals nor amphibians, because most fish cannot breath air. The few types of fish that can breath air are amphibious, because they also breath water. Neither. The amphibians, reptiles, birds, and mammals evolved from fish, so they could all be considered fish.
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Fish. ... Fish are gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups.
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Bony fish differ from fish like sharks and rays in the chondrichthyes class. Instead of cartilage, bony fish have bones. Bony fish also have a swim bladder.
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Parrot fishes are elongated, usually rather blunt-headed and deep-bodied, and often very brightly coloured. They have large scales and a characteristic birdlike beak formed by the fused teeth of the jaws. ... The fish grind their food and bits of coral with platelike teeth in their throats.
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Tilapia typically have laterally compressed, deep bodies. Like other cichlids, their lower pharyngeal bones are fused into a single tooth-bearing structure. A complex set of muscles allows the upper and lower pharyngeal bones to be used as a second set of jaws for processing food (cf.
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Because of its tooth/tusk, narwhals are considered a “toothed whale” or an odontocete cetacean. ... That's because while males typically have a tooth that grows more prominent over time, most females instead lose them, if they ever developed one at all.
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Koi carp do have teeth in order to chew their food, but the catch is, their teeth are not in their mouths! The teeth of the koi carp are far back in their throats, not in the mouth itself, and so once they take food into their mouth, it is chewed and digested via the throat before entering the stomach.
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With her large mouth filled with sharp, pointy teeth, the Anglerfish looks like a prehistoric creature. Her skin does not have scales, but it can be covered in warts or spines.
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Fish don't have ears that we can see, but they do have ear parts inside their heads. They pick up sounds in the water through their bodies and in their internal ear, according to the National Wildlife Federation.
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All animals have teeth that are adapted to eating certain types of food. For instance, herbivores, because they are plant eaters, have strong and flat molars that are made for grinding leaves and small or non-existent canine teeth.
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Sink your teeth into these unbelievable shark teeth facts: Sharks are born with teeth. Our first teeth form in the gums before birth and begin erupting at about 6 months of age. Unlike humans, shark pups enter the world sporting a full set of teeth.
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Most bony fishes have two sets of jaws made mainly of bone. ... Teeth are replaced multiple times also in most bony fishes, but unlike cartilaginous fishes, the new tooth erupts only after the old one has fallen out. Jaws probably originated in the pharyngeal arches supporting the gills of jawless fish.
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With the exception of some primitive species, most fish have common characteristics that include gills, scales, fins and bony skeletons. Some characteristics that differentiate fish include the shape of their heads, where their mouths are located, fin type and location, and average adult size.
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Anglerfish likes to live in the deep sea and looks pretty horrible with its big head and sharp teeth… but don't be fooled by its disgusting appearance: anglerfish is edible! ... All parts of the anglerfish are edible except for the head and bones, so there is no waste.
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Cows have three types of teeth: incisors, premolars and molars. Cows can't bite because they don't have top front teeth. They may “gum” you, but they can't bite you. Cattle do have molars on the upper and lower jaw, but their incisors are only the lower jaw.