Most bones in our body are formed by cartilage precursors that later become calcified to form the hard skeletal tissue we know as bone. Sharks actually do form some types of calcified tissues, such as their teeth, so they do have the ability to form bone. ... Why don't sharks have bones?
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www.ccmr.cornell.edu/education/ask/index.html?quid=655
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Sharks do not have bones. Sharks are made up of cartilage, and are called Elasmobranchs, which translates into fish made of catilaginous tissues. Even though they don't have bones they still can fossilize.
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www.nefsc.noaa.gov/faq/fishfaq8.html
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Animal Life question: Do sharks have bones? No, sharks do not have bones, their entire skeleton is cartilaginous (i.e. made of cartilage- not bone), they lack true bone. ... Do sharks hav bones? Do sharks ahve bones? Do sharks hhave bones? Do shark's have bones? Have sharks got bones? Is shark a bone less fish?
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wiki.answers.com/Q/Do_sharks_have_bones
wiki.answers.com/Q/Do_sharks_have_bones
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Sharks have evolved without the necessity to have an osseous skeleton.
http://wiki.answers.com/Q/Why_sharks_have_cartilage_and...
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There are approximately 350 different kinds of sharks. The largest is the whale shark, which can reach lengths up to 45 feet long. ... No bones about it... Sharks do not have bones. That doesn't mean they do not have a skeleton, though. A shark's skeleton is made of cartilage (like in your ears and nose bridge).
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www.whaletimes.org/sharks.htm
www.whaletimes.org/sharks.htm
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Sharks at Zoom School is all about Sharks, shark anatomy, extinct sharks, shark fossils, etc. ... Sharks are amazing fish that have been around since long before the dinosaurs existed. They live in waters all over the world, in every ocean, and even in some rivers and lakes. Unlike bony fish, sharks have no bones;
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www.enchantedlearning.com/subjects/sharks/
www.enchantedlearning.com/subjects/sharks/
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All articles related to Sharks Have No Bones written by Suite101 experts - enter curious ... Articles related to "Sharks Have No Bones" ... endoskeleton of bones...
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www.suite101.com/reference/sharks_have_no_bones
www.suite101.com/reference/sharks_have_no_bones
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Sorry, try again. ... ; A Shark's bones are not hard, they are made of soft material called cartilage.
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www.calstatela.edu/faculty/eviau/edit557/oceans/linda/l...
www.calstatela.edu/faculty/eviau/edit557/oceans/linda/lsharkv1.htm
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