Squirrel: How a Backyard Forager Shapes Our World

Squirrels are a common sight, seemingly everywhere in wild and urban nature. Their chattering antics in city parks delight us while their raids on our backyard gardens and birdfeeders never fail to exasperate. But squirrels are more than amusing backyard entertainers, and few of us know much about them or fully appreciate their role in keeping the environment healthy. As stress on the natural world intensifies, should we be paying more attention to the plight of squirrels?

In Squirrel, Nancy Castaldo shines new light on this familiar backyard mammal, exploring their staggering diversity (they're found on all continents but Antarctica) and the many surprising ways they shape our world, our communities, and our cultures. Each chapter explores an aspect of squirrels and their close and sometimes fraught association with humans: their importance to myriad ecosystems through sophisticated food-caching strategies; their introduction to nineteenth-century urban parks as adorable ambassadors for nature; their complicated global status as both invasive and endangered; their role as celebrated cultural icons and social media memes; and ultimately, why we must prevent population declines and protect their well-being while we can. Like other wildlife species, squirrels are increasingly stressed by climate change, and their speculative fate may foreshadow our own. The book includes a detailed bibliography, an exhaustive list of squirrel species and their status, and tips for coexisting peaceably with squirrels in our yards and neighborhoods. Chapters are introduced by exquisitely drawn historical illustrations.

Author: Nancy Castaldo
Publisher: Island Press
Published: 10/28/2025
Pages: 264
Binding Type: Paperback
Weight: 0.85lbs
Size: 9.00h x 6.00w x 0.50d
ISBN: 9781642833751


Review Citation(s):
Publishers Weekly 08/25/2025

About the Author
Nancy Castaldo is a naturalist, environmental educator, and the author of more than two dozen books for young readers. Her books have garnered starred reviews, the Eureka Award for Nonfiction, the Green Earth Book Award, and Sigurd F. Olsen Nature Writing honors, among others. Nancy has also authored articles about nature for a variety of print and online publications. She is a member of the Society of Environmental Journalists and on the International Wildlife Coexistence Network Council. She lives in New York's Hudson Valley with her husband and rescued Bichon.