Ground Squirrels

Golden-mantled Ground Squirrel | Walden, Colorado | September, 2010

Golden-mantled Ground Squirrel | Walden, Colorado | September, 2010

MC25-0077

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Golden-mantled Ground Squirrel | Walden, Colorado | September, 2010

Golden-mantled Ground Squirrel | Walden, Colorado | September, 2010

MC25-0085

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Wyoming Ground Squirrel | Walden, Colorado | March, 2010

Wyoming Ground Squirrel | Walden, Colorado | March, 2010

MC22-0105

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Wyoming Ground Squirrel | Walden, Colorado March, 2010

Wyoming Ground Squirrel | Walden, Colorado March, 2010

MC22-0108

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Arctic Ground Squirrel | Deadhorse, Alaska | June, 2011

Arctic Ground Squirrel | Deadhorse, Alaska | June, 2011

MC42-0208

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Arctic Ground Squirrel | Deadhorse, Alaska | June, 2011

Arctic Ground Squirrel | Deadhorse, Alaska | June, 2011

Arctic Ground Squirrels are the champion hibernator of the Arctic. Each winter they spend from 6 to 8 months in their underground burrows, where their heartbeats slow to about 2 per minute, and their core body temperature drops as low as 27 degrees for up to 3 weeks at a time. |MC44-0012

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