Hold onto your lunches -- author Jeff Szpirglas is ready to talk about the scientific facts behind our disgusting world. From mucus to vomit, from farts to phlegm, nothing is off limits. It's not always pretty, but it sure is fascinating. Find out why we need scabs, how spit keeps our teeth clean and why pus is a Perfectly Understandable Secretion. With his wicked sense of humor, Szpirglas explores the topics that we find revolting -- and kids find irresistible--and uncovers a whole lot of amazing science along the way. Chapters include Sickening Skin, Healing Horror Stories, Spectacular Stenches, Things that Ooze, and Foul Fossils. Irreverent illustrations add bold visual verve to the "engrossing" text. Gross Universe will keep young audiences laughing and learning as they uncover the science behind some of life's more odious occurrences.