There are billions of living things on Earth. Living things are alike in many ways, but they are also very different. This intriguing book asks children to look at similar characteristics and decide if certain living things are what they seem to be. For example, are bats a kind of bird? Is a mushroom a kind of plant? Are caterpillars, worms, and eels different kinds of snakes? Are whales really big fish? This fascinating book explores what makes a living thing and how living things are grouped. What kind of living thing is it? will turn young readers into nature detectives.