Stress elicits a broad range of behavioral responses in which the profile is dependent upon characteristics of the organism (i.e., coping ability, dominance order) and the stressor (i.e., severity, duration). Most often these behaviors are indicative of fear and anxiety. Animals frequently exhibit decreases in exploratory activity and social interaction while exhibiting increases in locomotor activity, vocalization, and inappropriate behaviors (e.g., stereotypies) in response to stressors. Typically, stress causes changes in normal behaviors instead of causing new behaviors. In general, behavioral adjustments to stress are adaptive in nature. It has been suggested that at the onset or during mild bouts of stress, behavioral adjustments can modulate the animal back to ''normal'' without eliciting a physiological response. During mild thermal stress one can only detect behavioral adjustments in response to thermal stress (end of the comfort zone), which may be enough to help the animal cope. In fact, it's not until the thermal environment changes further that the animal requires measurable behavioral and physiological adjustments. Despite these adjustments, the homeokinetic responses are within normal range. Essentially, it's not until the animal experiences
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