Survival Time of Various Warm-blooded Animals in Extreme Cold

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Abstract
Observations are reported on the survival time and body temp. of adult animals at an ambient temp. of[long dash]35[degree] C. The expts. were conducted over a 4-day period. The animals were confined, one at a time, in metal cages with cardboard bottoms. The rectal or cloacal temps. were taken in rabbits, rats, pigeons, and chickens. The animals generally sat quietly and exposed a minimum of surface. They were not fed. The adaptability to low temp. varied considerably among the spp. and within one sp. The pigeon was especially well adapted, one pigeon surviving for 78 hrs. Local frostbite was observed on the ears of rabbits, on the combs of chickens, on the feet of chickens, pigeons, mice, and rats, and on the tails of rats and mice.
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