What Are Sharks Skeletons Made of?

Answer

Shark skeletons are made up of a bone-like substance known as cartilage. This is a strong and flexible material that enables the shark to move in different ways. The cartilage is calcified giving it additional strength and making it weigh less.
Q&A Related to "What Are Sharks Skeletons Made of"
cartlidge or bone Sharks have a skeleton made of Cartlige.
http://wiki.answers.com/Q/What+is+a+sharks+skelont...
Cartilage is a strong and durable material but
http://www.chacha.com/question/what-advantages-doe...
Rafaela has the start of a correct answer. The teeth and scales are indeed made of the same materials and are derived from the same structure. The teeth and scales are both made from
http://answers.yahoo.com/question/index?qid=201203...
7 Dec 2010: Sharks have killed and maimed five tourists at the idyllic Egyptian resort of Sharm el-Sheikh. What's behind this wave of terror?
http://www.guardian.co.uk/travel/egypt+diving
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