Rock squirrels hibernate in northern California, but don’t need to in the south. Learn more about the aggressive rock squirrels in the Grand Canyon. Some squirrels live in year-round warm climates.ĭid you know ground squirrels dig elaborate tunnel systems that even have bathrooms? They hibernate for 5-7 months. Like a few other animals on the list, not all squirrels need to hibernate. Similar to chipmunks, squirrels store food for winter. You should not see any chipmunks during winter because they burrow into holes three feet deep and stay with their stored food. They keep stored food nearby to eat when they wake up during their four months of hibernation. ChipmunksĬhipmunks enter something similar to light hibernation or torpor. Due to their behavior, their hibernation varies from several hours to days. They build nests that help conserve heat and hibernate near food and water. They may sleep all day or venture out to forage for food at night. Deer Miceĭeer mice are light hibernators that sleep in groups to share body heat. The rate drops to only 25 during hibernation, when the bat may breathe once a minute. When awake, bats have a staggering heart rate of about 400 beats per minute. Hibernating bats can sleep in caves but also human structures like barns, attics, and even inside wall spaces for up to six months. The funny thing is, bears do not truly hibernate they go into light hibernation because they occasionally wake up and even venture outside for 5-7 months. They are probably the most famous of all hibernating animals. BearsĮveryone knows about hibernating bears. There are probably more insects that survive cold climates, too, but mammals are the most visible. Most mammals have fur, and fur allows mammals to be the largest group of cold-weather dwellers. The main reason is that hibernation is a cold-weather survival strategy to get out of having to forage for food when almost everything is dead. Mammals are the largest group of animals that hibernate.
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