What is hibernation definition?

Hibernation is a state of inactivity or reduced metabolic rate in animals during winter or when food is scarce. This process allows animals to conserve energy and survive during periods of extreme cold or food shortage. During hibernation, animals lower their body temperature, heart rate, breathing, and metabolism to conserve energy. They also rely on stored fat reserves for weeks or even months without eating. Hibernation is a common phenomenon among bears, rodents, bats, and other animals that live in areas with harsh winters or limited food resources.