Beetles and spiders and bees, oh my. From time to time, everyone has come across at least one of these creepy-crawly creatures, but what goes on inside their little bodies that makes them do the things they do? With the help of this clever book, readers will learn the answers to that and other questions they might have about these interesting animals. Though mostly small, the insides of these creatures' bodies are often quite complex. Simple, labeled diagrams and illustrations paired with accessible captions and text help readers understand the key workings and functions of these animals' insides.