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An endotherm (from Greek ἔνδον endon "within" and θέρμη thermē "heat") is an organism that maintains its body at a metabolically favorable temperature, largely by the use of heat released by its internal bodily functions instead of relying almost purely on ambient heat.
Whether a process can occur spontaneously depends not only on the enthalpy change but also on the entropy change (∆S) and absolute temperature T.If a process is a spontaneous process at a certain temperature, the products have a lower Gibbs free energy G = H – TS than the reactants (an exergonic process), [2] even if the enthalpy of the products is higher.
Examples include lady beetles (Coccinellidae), [44] North American desert tortoises, crocodiles, salamanders, cane toads, [45] and the water-holding frog. [ 46 ] Daily torpor occurs in small endotherms like bats and hummingbirds , which temporarily reduces their high metabolic rates to conserve energy.
A similar example is given by the Senegalese sole (Solea senegalensis), which, when acclimated to temperatures of 26 °C, produced a significantly higher amount of taurine, glutamate, GABA and glycine compared to acclimation to 12 °C. This may mean that the aforementioned compounds aid in antioxidant defense, osmoregulatory processes, or ...
The pre-flight warm-up behavior of a moth. Insect thermoregulation is the process whereby insects maintain body temperatures within certain boundaries.Insects have traditionally been considered as poikilotherms (animals in which body temperature is variable and dependent on ambient temperature) as opposed to being homeothermic (animals that maintain a stable internal body temperature ...
Thermographic image: a cold-blooded snake is shown eating a warm-blooded mouse. Warm-blooded is an informal term referring to animal species whose bodies maintain a temperature higher than that of their environment.
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One example is the Chaamba, who live in the Sahara Desert. They wear clothing that traps air in between skin and the clothes, preventing the high ambient air temperature from reaching the skin. They wear clothing that traps air in between skin and the clothes, preventing the high ambient air temperature from reaching the skin.