Giant deadly hornets, gorgeous fluttering butterflies, and stealthy crawling stink bugs: discover these and more fascinating insects in Expedition: Insects, an e-book written, illustrated, and animated by the Smithsonian Science Education Center. Students will learn about sic different types of insects in natural habitats around the world and how evolution and adaptation is responsible for the insects’ characteristics. Download an interactive version of the e-book for free on iBooks or read the non-interactive PDF version online.