Body Temperature RegulationBody TemperatureTemperatureSkin TemperatureHypothermiaCold TemperatureHot TemperatureShiveringSweatingFeverThermographyHibernationThermometersThermoreceptorsThermogenesisPreoptic AreaTelemetryPiloerectionAcclimatizationCircadian RhythmThermosensingAdipose Tissue, BrownWater Loss, InsensibleIncubators, InfantThermal ConductivityHypothalamusClothingLizardsSeasonsHeat Stress DisordersHypothalamus, AnteriorHeatingSkin Physiological PhenomenaEnergy MetabolismHumidityBehavior, AnimalOxygen ConsumptionPleasure-Pain PrincipleTime FactorsAntelopesBasal MetabolismHeart RateSleepMotor ActivityRespirationSciuridaeCerebral VentriclesRectumAraceaeMitochondrial ProteinsEatingAdaptation, PhysiologicalInjections, IntraventricularFeeding BehaviorN-Methyl-3,4-methylenedioxyamphetamineEnvironmentWakefulnessScrotumThermometryIon ChannelsTonic PupilTRPV Cation ChannelsHypothermia, InducedStress, PhysiologicalAntipyreticsNorepinephrineBody WeightWaterSkinDivingPhodopusWyomingCarbon DioxideModels, BiologicalImmersionAdie SyndromeAnalysis of VariancePhysical ExertionPyrogensAnimals, NewbornInjectionsSheepAutonomic Nervous SystemSweat GlandsSerotoninRats, Sprague-DawleyHeat StrokeExerciseTRPM Cation ChannelsPredatory BehaviorDolphinsBrainPigmentationRegional Blood FlowInfrared RaysHydrogen-Ion ConcentrationCardiovascular Physiological PhenomenaCatecholaminesThermodynamicsMice, Inbred C57BL