Nancy Castaldo, "Squirrel: How a Backyard Forager Shapes Our World" (Island Press, 2025)

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Recorded09 Feb 2026

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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: How a Backyard Forager Shapes Our World (Island Press, 2025), 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. This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts. Learn more about your ad choices. Visit megaphone.fm/adchoices Support our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/environmental-studies

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