Did you know human bones are eight times stronger than concrete? Or that both humans and giraffes have seven vertebrae in their necks? You will learn about thes

Two skeletons go trick-or-treating on Halloween, getting compliments on their "costumes", and making new friends.

Provides information on both human and animal skeletons and their bones. Includes bone-tickling riddles that help identify different skeletons, and special see-

Describes the structure of the human skeleton and explains how bones grow, fit, flex, and sometimes break, with activities, puzzles, quizzes, and a skeleon mode