What mysterious creatures are making those noises in the darkness? In Calls of the Wild: Nighttime Animals, readers will encounter 15 fascinating nocturnal animals and listen to their authentic calls with the press of a button. Learn about each creature’s habits and survival skills while listening to their howls, hoots, songs, and chirps. From the fierce growling of the gray wolf and Bengal tiger to the noisy screeches and shrieks of the kakapo bird and Tasmanian devil, the sounds and creatures in this book will take young readers on a virtual tour of the wilderness from the comfort of home.