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Habituation is a fundamental form of learning observed in animals that involves a decrease in responsiveness to a stimulus after repeated exposures. When an animal becomes habituated to a certain stimulus, it means that it has learned that the stimulus is neither harmful nor beneficial, leading to reduced sensitivity to that particular stimulus over time. This process allows animals to conserve energy and attention for more important or novel stimuli that may have a greater impact on their survival or well-being.

Increased fear responses would generally occur in situations where the animal perceives a threat, not through habituation. Increased attention to stimuli contradicts the essence of habituation, as this process specifically relates to a diminishing response. Enhanced learning capacity is influenced by various factors, including the environment and prior experiences, but is not the direct outcome of habituation itself. Therefore, reduced sensitivity to repetitive stimuli accurately captures the essential outcome of habituation in animal behavior.

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