They're the Olympians who hurl themselves head first toward gold. Skeleton slider Kendall Wesenberg is sliding toward her second Olympic team.

The oldest bat skeletons in the world have been identified as a new species, helping scientists fill in the spotty fossil record of these flying mammals and providing new clues about how they evolved.

The skeleton allows movement, provides support and protection for vital organs and makes blood cells. Skeletal muscles move the bones in the body. The skeletal system is made from bones and joints.

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