Kids love books about poop, boogers, and slime. Why shouldn't adults? Francesca Gould and David Haviland bring this engrossing genre to adults with their latest book Why Dogs Eat Poop & Other Useless or Gross Information about the Animal Kingdom . Don't think this is relevant for adults today? Take a look at the section entitled "Are Cows' Farts a Major Cause of Climate Change?".