Bears, especially species like the American black bear and the brown bear, go into hibernation during the winter months.
Hedgehogs hibernate to survive the cold months when food is scarce. They find a safe and insulated place to sleep, such as burrows or piles of leaves, and lower their body temperature significantly.
Many bat species, including the little brown bat, hibernate in caves or other sheltered locations during the winter. Their heart rate and metabolic rate drop dramatically to conserve energy.
Also known as woodchucks, groundhogs hibernate in burrows. They prepare by eating a lot in the fall to build up fat reserves and then sleep through the winter months.
Dormice are small rodents that hibernate for long periods, often up to six months. They find a safe, hidden spot and significantly lower their body temperature and metabolic rate.
Some snake species, like the garter snake, hibernate during the winter. They seek out burrows, caves, or other sheltered locations where they can stay inactive and conserve energy.
Certain turtle species, including the box turtle, hibernate in mud or underwater. They slow their metabolism and can survive without food for months.
Frogs, such as the wood frog, hibernate in mud at the bottom of ponds or in leaf litter on land. They can survive freezing temperatures by producing antifreeze-like substances in their bodies.
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