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Dolphin Skeleton (Gliding Joint)
Observations The dolphin has a very long backbone and tail that helps it move well under water along with protective ribs.
Explanations The dolphin is built to be sleek. Its body is made of almost entirely backbone (a gliding joint) which makes it very flexible under water. The ribs protect the inner organs of the dolphin and the tail beats from side to side, thrusting the animal forward.
California Standards Specialized structures
National Standards Structure and function
Related NSF Exemplary Curriculum Bones and skeletons
Related Sets

Aquatic Animal Skeleton - Gliding Joint

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Ketan Patel
California State University, Fullerton


California State University, Fullerton
Jul 14 2007



This material is based upon work that was supported by the National Science Foundation under Grant No. 0127164 to California State University Fullerton. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

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