Today, science offers explanations of things people once found freaky, and the human body is no exception. Everything our body does has a purpose, from our seemingly gross bodily fluids to the weird and wild ways we stay healthy. Readers take a journey through the human body, learning why (almost) every organ has a purpose and how the old adage "What doesn't kill you makes you stronger" is actually true in some ways. From the bacteria that fills our bodies to babies' lack of kneecaps when they're born, no stone is left unturned in this freakish compilation of all things anatomical. Vivid color images and fascinating fun facts and sidebars offer even more bodily knowledge.