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Columbia River Gorge's tiny pikas may be valuable indicator species for climate change - oregonlive.com
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The American pika population is declining, and Walking Mountains needs help researching | VailDaily.com
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Mountain pikas, relatives of rabbits, survive at warm sea-level temperatures by eating mosses | NSF - National Science Foundation
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American pika with a leaf in its mouth standing on a rock in the Frank Church - River of No Return Wilderness ID Stock Photo - Alamy
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Pika ecology at low elevations in the Columbia River Gorge (CRG). (a)... | Download Scientific Diagram
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