Invertebrate paleontology is the study of fossils, or remains of ancient creatures that do not have a backbone, like bugs and snails. Imagine you go to the beach and you find a shell in the sand. That shell once belonged to a snail that lived a long time ago. Scientists study these fossils to learn about what the world was like a very long time ago, and what kinds of animals and plants lived then. They look at the shape and size of the fossils and try to figure out how the animals lived, what they ate and how they moved. It’s like being a detective, except they’re trying to solve mysteries about the past by examining ancient clues!