San Diego: America's Wildest City by

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San Diego’s sand, surf, and flawless weather attract millions of visitors each year. But it isn’t just “America’s Finest City” – it’s also America’s wildest! Mountains, ocean, and desert collide here to create the most biodiverse landscape in America. But to survive in an ecosystem utterly transformed by their 3.3 million human neighbors, wildlife must adapt or perish.