This enjoyable picture book briefly describes the ways babies--both human and animal--grow and develop. For every human experience, including gestation, birth, suckling, sleeping, learning to talk, and more, it presents analogous animal ones, comparing, for example, a human baby learning to walk at about 12 months to a fawn jumping and running within an hour of being born. The cheerful illustrations and short, simple text are just right for reading to preschoolers, but older readers may crave additional information.