Grownups say, "Be on your best behavior." But in the animal world, rudeness sometimes rules the day!Scarlet kingsnakes lie; they pretend to be venomous coral snakes to scare off predators. And hippos make a mess; they spray waste to defend their territories. For these animals and many others, being rude can be a matter of survival. Author and science educator Jessica Fries-Gaither introduces seven human behavior rules and the animals that break them!