Picking your nose might be an icky habit, but humans aren't the only ones that do it! Apes can be seen sticking their fingers up their noses. Dogs may lick their nose to keep it moist, but they also lick it to keep it clean! Snot, boogers, nose mucus--no matter what you call it, it's the gross stuff that comes out of your nose. But snot has an important job in the body of animals: Trapping and removing stuff that shouldn't be there! Through this deep dive straight into animal noses, readers discover why we need snot to stay healthy.