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tooth
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References & Edit History Quick Facts & Related Topics
Images, Videos & Interactives
adult molar The Human Body teeth, primary and permanent sawfish
The video thumbnail image shows a brown-speckled bird perched on a branch, singing with an open beak.
piranha tooth size comparison: megalodon and modern great white shark Human body systems interactive human vocal organs and points of articulation
How evolution reveals the differences between humans and apes
For Students
tooth summary
Read Next
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Why Don’t Birds Have Teeth?
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Communism - mosaic hammer and sickle with star on the Pavilion of Ukraine at the All Russia Exhibition Centre (also known as VDNKh) in Moscow. Communist symbol of the former Soviet Union. USSR
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Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army
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cloning. First cloned cat. First cloned companion animal. CC (copy cat) female domestic shorthair cat (b. Dec. 22, 2001) photo Jan. 18, 2002. Cloned at Texas A&M Univ. College of Vet. Med. & Biomedical Sciences. Reproductive cloning genetics DNA cc cat
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Videos

Why don't birds have teeth?
Birds descended from dinosaurs, but they don't have their ancestors' bite.
Video: Encyclopædia Britannica, Inc.
How evolution reveals the differences between humans and apes
Learn about human evolution.
Video: Contunico © ZDF Studios GmbH, Mainz; Thumbnail © anne sarfina agustina dimyadi/Dreamstime.com

Images

adult molar
Cross section of an adult human molar.
Encyclopædia Britannica, Inc.
teeth, primary and permanent
Diagram of human primary and permanent teeth.
Encyclopædia Britannica, Inc.
sawfish
Sawfish (Pristis).
Karl H. Maslowski
piranha
Piranha with its teeth exposed.
© alblec—iStock/Getty Images
tooth size comparison: megalodon and modern great white shark
Megalodon (Carcharocles megalodon) tooth (right), significantly larger than...
Jeff Rotman/Alamy
human vocal organs and points of articulation
Diagram depicting the location of human vocal organs and possible places of articulation...
Encyclopædia Britannica, Inc.
Cross section of an adult molar. The crown (the part of the tooth above the gum)...
© Merriam-Webster Inc.

Interactives

The Human Body
Experience the major systems of the human body.
Encyclopædia Britannica, Inc.
Human body systems interactive
Interactive diagram of the major systems of the human body.
Encyclopædia Britannica, Inc.
VIEW MORE in these related Britannica articles: