Behavior in the Cold after Acclimatization

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Science  24 Jun 1960:
Vol. 131, Issue 3417, pp. 1891-1892
DOI: 10.1126/science.131.3417.1891


Experimentally naive albino rats begin to press a lever for short bursts of radiant heat earlier in a 16-hour session at 2°C than rats that have been living at this temperature for about a month. This difference reflects the different rates at which body temperature in the cold falls in acclimatized and nonacclimatized animals.