Body TemperatureBody Temperature RegulationTemperatureMammalsCold TemperatureHot TemperatureSkin TemperatureHypothermiaThermometersFeverHibernationTelemetryShiveringThermographyCircadian RhythmSciuridaeThermogenesisSweatingTime FactorsHumidityThermometrySeasonsHeat Stress DisordersHypothermia, InducedHeatingAntipyreticsImmersionPyrogensMotor ActivityEnergy MetabolismPreoptic AreaThermosensingRectumIncubators, InfantHypothalamusBehavior, AnimalHeat StrokeBasal MetabolismMarsupialiaMolecular Sequence DataHeart RateAdaptation, PhysiologicalLizardsThermoreceptorsSleepSpecies SpecificityOxygen ConsumptionHydrogen-Ion ConcentrationWaterInfrared RaysThermal ConductivityCold ClimateEatingThermodynamicsRespirationN-Methyl-3,4-methylenedioxyamphetamineInjections, IntraventricularTransition TemperatureHyperthermia, InducedAlligators and CrocodilesClimateWakefulnessClothingBeluga WhaleKineticsAdipose Tissue, BrownRewarmingCerebral VentriclesStress, PhysiologicalEar CanalEnvironment, ControlledMytilusDimensional Measurement AccuracyCarbon DioxidePhotoperiodModels, BiologicalComb and WattlesEnvironmentPhylogenyBody WeightAirMutationWater Loss, InsensibleAcclimatizationAmino Acid SequenceCold-Shock ResponseBody Temperature ChangesLightAnalysis of VarianceReptilesCalorimetry, Differential ScanningMelatoninSleep, REMBrainEchidnaRats, Sprague-DawleyBathsShrewsFeeding BehaviorRodentia