What ocean animal dances every morning? Who plays with their food? Where can you find fish that light up? In Focus: Oceans and Seas has the answers!

Examines the systems and parts of the human body and how they work, including the skin, blood, bones, lungs, and heart.

"The ultimate guide to every bone in your body. Did you know bones are 75% water? Or that humans and giraffes both have just seven vertebrae in their necks? Learn more amazing facts in "The Skeleton Book." Full of incredible computer-generated 3-D images, children can explore the bones of the body in great detail. Find out how the skeleton is flexible enough to make the body agile but provides support and strength to the body. Bones are stronger...