Superhuman Endurance, , North Star Editions, Kelly Doudna,Science & Nature/Anatomy & Physiology,JUVENILE NONFICTION, anatomy and physiology; about the human body; supherheroes; best athletes in the world; endurance runners; muscles; oxygen; stem books for kids; about the human body; biology for kids; exercise; mediation; ultramarathons; pam smith; 100 mile run; jim dreyer; swimmers; athlete facts; impressive athletes; fitness challenges,, Superhuman Science, United States, en-UShttps://northstareditions.comanatomy and physiology; about the human body; supherheroes; best athletes in the world; endurance runners; muscles; oxygen; stem books for kids; about the human body; biology for kids; exercise; mediation; ultramarathons; pam smith; 100 mile run; jim dreyer; swimmers; athlete facts; impressive athletes; fitness challenges, [BLURB],[CITY],,books, ebooks, biblet, Book2look