Eyewitness Skeleton (DVD)
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Skeletons reveal their form, function, and complexity in this unique DVD. In addition to internal skeletons such as found in vertebrates, this DVD also introduces the viewer to invertebrates that carry skeletons on the outside of their body (thus protecting fleshy body parts and reducing water loss). This captivating 35-minute DVD from the popular Eyewitness series is perfect for ages 8 and up.