The more than 30,000 kinds of fish living in Earth's waters may look different, but they are classified together by a few features. They all have a backbone, breathe with gills, and are cold-blooded, among other similar features. In this book, readers find out all about what makes a fish a fish. They learn even more about certain fish, like stingrays, alongside creative origami projects that bring art and science together. From a fish's life cycle to how to fold a fin, this title has everything needed for a deep dive into STEAM curricula.