From people to platypuses to whales, there are many kinds of mammals in the world! How can animals that are so different go through a similar life cycle? In this interesting and educational book, struggling readers review the basic structure of the mammal life cycle. Helpful diagrams are included to show readers how these cycles progress, step by step. Reader-friendly, accessible language and vibrant photographs appeal to reluctant readers, ensuring that they grasp this key topic in the science curriculum.