Get a 7-day free trial! To play The Human Body (and more Tinybop apps), you must install the Tinybop Explorer's Pass.* Learn anatomy and biology in an interactive model of the human body — the heart beats, guts gurgle, lungs breathe, the skin feels, and eyes see. The Human Body is No. 1 in Tinybop’s Explorer’s Library. Each Explorer’s Library app lets kids explore the invisible and awesome wonders of STEM. Kids (and kids at heart!) ages 4+ develop foundational science literacy. * HOW THE TI