In a fun-filled mix of science facts, fiction and activities, Earthlings Inside and Out explains the anatomy of the human body to an alien who has just cruised down to earth. Over a dozen easy-to-follow experiments investigate the skin, the brain, the senses, the digestive and respiratory systems and more! Quirky watercolor illustrations and the amusing interactions between a boy and the space alien give kids a fresh, funny and easy-to-understand look at their bodies.