What is the state of reduced metabolic activity in animals, often occurring in winter?

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The state of reduced metabolic activity in animals during winter is known as hibernation. This process allows animals to conserve energy when food is scarce and environmental conditions are harsh. During hibernation, an animal's metabolic rate significantly decreases, leading to lower body temperature, heart rate, and respiration rate. This adaptation is crucial for survival, as it enables animals to endure long periods without food while reducing the energy expenditure in their bodies.

Estivation, on the other hand, is a similar state but occurs in response to hot and dry conditions, typically in summer. Metabolism refers generally to the chemical processes that occur within living organisms. Aestivation is often confused with hibernation but is specifically a summer dormancy, used by some species to survive prolonged drought. Understanding these different states of dormancy helps clarify the adaptations animals have evolved to cope with extreme environmental conditions.

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