The American pika has died out from a 165-square-mile area of habitat in California’s Sierra Nevada Mountains, due to climate change.
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Species can respond to increasing temperatures by moving upslope to higher elevations, however in many locations the mountains are just not high enough to provide a safe refuge.
The pikas ingest the low quality moss over and over again and, with the help of microbes in their gut, the moss is turned into high-quality food. The end product is 6 times more nutritious than the moss itself.