Emperor penguins are fascinating animals. Their adaptations to keep their young alive in the Antarctic has long been studied. Less well known is the long migration these penguins endure inland and then back to the sea. Readers of this intriguing book will read why this journey is necessary to the species and the challenges they face. Vivid photographs of penguins punctuate the dynamically designed text, which includes fact boxes, a map, and a concluding quiz.