Apparent climate-mediated loss and fragmentation of core habitat of the American pika in the Northern Sierra Nevada, California, USA | PLOS ONE
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Nearly extinct 'Teddy Bear Face' creature photographed for first time in 20 years - ABC7 San Francisco
Western National Parks Association - The American pika is a tiny, mouse-like animal that is nearing extinction in the western US. When you give to WNPA, you help fund crucial scientific research
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Extinction dynamics and microrefugia of the American pika as climate changes. | U.S. Geological Survey
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The Trump Administration Dismantles Endangered Species Protections as Sixth Mass Extinction Crisis Looms - Union of Concerned Scientists
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