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California Trails

Biggest Mountain Lion Study in State History Underway

Biologists aim for an accurate population estimate for California's cougars in a highly ambitious survey.

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Mountain lions make their homes across most of California, but scientists haven’t worked on an estimated population count for decades. Now, researchers are chasing and collaring the big cats as well as testing scat to establish how many live in the state in the largest study of its kind ever–crucial data that will inform management plans moving forward.