is a shark a fish or a mammal?
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So What are Sharks if They Aren't Mammals? Sharks are classified under fish. They belong to a group of fish called cartilaginous fish. This is because their entire skeleton is made up of cartilage.
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Sharks are classified as a type of fish and are not mammals or amphibians. Like other fish, sharks breathe through gills for their entire...
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Most sharks, like most fishes, are cold blooded, or ectothermic. Their body temperatures match the temperature of the water around them. There are however 5 species of sharks that have some warm blooded, or endothermic capabilities.
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Almost all sharks are carnivores, or meat eaters. This means they like fish and large sea mammals (animals with hair) such as dolphins and seals. They also eat turtles and seagulls, or even other sharks!
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1. Mammal or fish? Many mistakenly consider mantas to be mammals. In reality, they are fish, belonging to the same class (Elasmobranchii) as sharks, and other species of ray.
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Fish are not mammals. ... Mammals are warm blooded and usually have hair/fur and give birth live. Amphibians are cold blooded and do not have hair/fur and lay eggs and usually live partly in water. Fish are cold blooded and usually have scales and lay eggs.
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Sharks exhibit a great diversity in reproductive modes. There are oviparous (egg-laying) species and viviparous (live-bearing) species. Oviparous species lay eggs that develop and hatch outside the mother's body with no parental care after the eggs are laid.
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Neither. Sharks are classified as a type of fish and are not mammals or amphibians. Like other fish, sharks breathe through gills for their entire...
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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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['Zebra shark. Length: 2.5 metres (8.2 feet) ... ', 'Blacktip shark. Length: 2.8 metres (9.2 feet) ... ', 'Nurse shark. Length: 3 metres (10.1 feet) ... ', 'Sand tiger shark. ... ', 'Basking shark. ... ', 'Whale shark. ... ', 'Megalodon!']
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Fish are a part of the phylum chordata (vertebrates). Main classes in order of hierarchy: animals, phyla, class, order, family, genera, species. Last century there were two main classes only: plants and animals, so fish are by themselves, neither reptile nor amphibian, but alongside other groups.
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FEEDING. The remains in the stomachs of several individuals captured reveal a carnivorous feeding based on teleost fishes, ostracods, squids, crabs, and cephalopods. Garbage and pelagic species have also been found in their bellies. Therefore this shark can swim in depths as well as on shallow waters to find food.
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Main predators of mako sharks are larger shark species, swordfish and groups of dolphins. Mako sharks live in symbiosis (mutually beneficial relationship) with small fish which remove parasites from the shark's body. Mako shark is the fastest known shark species.
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Sharks are at the top of the food chain and are considered apex predators. They are at that position because they are able to hunt all animals in the...
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Bull sharks are often considered to be the most dangerous sharks to humans because of their aggressive tendencies and ability to migrate up rivers. However, shark attacks are extremely rare. ... The sharks eat mostly fish, but can also eat other shark species, marine mammals, birds, and turtles.
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Sharks are covered in flexible scales—nearly invisible to the human eye—that are made of the same material as teeth. The scaly hide serves as both a suit of armor and a means of streamlining movement, according to Amy Lang, an aerospace engineer at the University of Alabama.
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Whales sharks are the largest fish in the world. They are not whales; they are sharks. They have a lot in common with whales, though.