Head to the depths of the ocean to study humpback whales in this beautiful non-fiction field guide for kids. You may know that humpback whales use whale song to communicate with each other, but there's so much more to discover about these giants of the sea! In this book, acclaimed marine biologist Dr Asha de Vos explains how humpback use special bubble nets to catch fish, and the important role their poo plays in the ocean ecosystem.Filled with simple science and plenty of animal facts, this book also explains how hunting made humpback whales an endangered species - and how conservation efforts have seen their numbers increase again.