Sharks | smithsonian ocean, No matter their size, all sharks have similar anatomy. like other elasmobranchs (a subclass of animals that also includes rays and skates), sharks have skeletons made of cartilage—the hard but flexible material that makes up human noses and ears. this is a defining feature of elasmobranchs, as most fish have skeletons made of bone.. Megalodon shark teeth sale lowcountry geologic, Megalodon shark teeth for sale. buy a megalodon tooth and great white shark teeth from lowcountry geologic.. Shark tooth - wikipedia, A shark tooth is one of the numerous teeth of a shark.a shark tooth contains resistant calcium phosphate materials. sharks continually shed their teeth; some carcharhiniformes shed approximately 35,000 teeth in a lifetime, replacing those that fall out. there are four basic types of shark teeth: dense flattened, needle-like, pointed lower with triangular upper, and non-functional..
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