From a physiological perspective, the increase in pelage (i.e. fur) that some mammals experience in winter represents

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Acclimatization refers to the physiological adjustments that organisms make in response to changes in their environment, such as temperature changes across seasons. The increase in fur during winter is an example of how animals acclimatize to colder conditions to maintain body heat. Adaptation, on the other hand, refers to genetic changes that occur over many generations, while acclimation is a more immediate, reversible response to environmental changes. Feedback inhibition is a biochemical regulatory mechanism and does not directly relate to changes in fur density.

From a Physiological Perspective, the Increase in Pelage (I