What are a rhino's tusks made of?

Answer

A rhino's horn is made up of keratin and calcium. Elephants are the only other tropical animals that have tusks. A rhino's horn can grow to up to 45cm.
Q&A Related to "What are a rhino's tusks made of?"
Answer It is made of keratin, the same substance as hair and fingernails.
http://wiki.answers.com/Q/What_is_a_Rhinoceroc_Tus...
Rhino horns are made from keratin: it is made of the same protein that your fingernails are made of! Elephant tusks are made of ivory.
http://www.kgbanswers.co.uk/what-are-rhinos-tusks-...
Rhinoceros horn isn't really a horn-it's tightly
http://www.chacha.com/question/what-is-the-differe...
A rhino's horn is made of keratin fibers. It is the same material found in your hair and fingernails!
http://www.kgbanswers.com/what-are-rhinos-horns-ma...
Explore this Topic
Elephant's tusks are mainly made from a tough substance called ivory. Their tusks have led to their downfall as they are hunted because of their precious ivory ...
Elephant tusks can be worth a different price from piece to piece. For example, an elephant tusk that was made into ivory piano keys is worth about $115.00. A ...
Rhinos are critically endangered because of poachers. People poach rhinos for their horns which are made of compacted hair and keratin that can be used to produce ...
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