Human Elements: How one scientist tracks giant, invisible cats

Wildlife biologist Lauren Satterfield uses telemetry to locate a cougar near Winthrop in Okanogan County. Satterfield studies predator prey interactions for the University of Washington's Predator Ecology Lab.  (Sarah Hoffman/Crosscut)

What's it like to study an animal that is almost impossible to see? Wildlife biologist Lauren Satterfield leads us on an epic adventure by car, snowmobile and on foot through deep snow to track elusive mountain lions in the wilderness. As human development expands into their territory, her work might help us learn how these big cats and humans can coexist without conflict.

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