8Scholander P F,Walters V,Hock R,et al.Body insulation of some arctic and tropical mammals and birds[J].Biol Bull,1950,99:225-236.
9vadsheim P H K,Folkow L P,Blix A S.A new device for measurement of the thermal conductivity of fur and bulbber[J].Journal of Thermal Biology,1994,19(6):431-435.
10Carolyn J G,Caroline M,Onischak,et al.Acute early thermal experience alters weaning onset in rats[J].Physiology & Behavior,1998,64 (4):463-474.
