Abstract
Summary
Microscopic examination revealed that hearts of arctic ground squirrels killed in the field (noncaptive) were free of myocardial lesions but numerous areas of focal necrosis were found in the hearts of animals held captive for 2, 3, or 4 weeks. The etiology of these degenerative changes may be associated with the stress of captivity, but remains to be determined.
The authors thank Robert E. Becker of the USAF Arctic Aeromedical Laboratory, Fort Wain-wright, Alaska, for supplying the ground squirrel hearts.
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