suggests a reassessment of our theories "torpidity" in birds and mammals. concerning the evolutionary status of Voluntary Hypothermia in Reptiles

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Science  24 Mar 1967:
Vol. 155, Issue 3769, pp. 1551-1553
DOI: 10.1126/science.155.3769.1551


Studies on lizards in laboratory thermal gradients which are not shut down at night reveal complex thermoregulatory behavior. Maintenance of the high, characteristic levels of body temperature known for active lizards may be abandoned. Low levels, which incapacitate the lizards, are seleted. Evidence of complex responses of the "thermostat" at a reptilian level of organization