From tiny hummingbirds to huge ostriches, all birds lay eggs! These eggs look very different from one another. Do these species' life cycles vary as much as their appearances do? In this book, readers learn about the typical life cycle of a bird, while exploring the many distinct species that exist within the animal group. Written specifically for students in need of review or extra help, this book gives a concise overview of a topic commonly included in science curricula. Accessible, reader-friendly language and helpful diagrams appeal to reluctant readers.