Surprisingly, even normally solitary snakes will create a hibernating mass; a den of over 8,000 garter snakes was once discovered in Canada, although dozens of garter snakes is more likely. Bats hibernate in a cycle unlike any other animal. The term hibernation is commonly applied to all types of winter dormancy in vertebrate animals. The word "hibernation" is derived from the Latin hibernare, meaning, "to pass the winter," according to the Online Etymology Dictionary. When animals hibernate, they aren’t sleeping. Hibernation is when some animals have long periods of deep sleep during cold weather. There are also many creative writing pages which children can use to write about where and how these animals hibernate. Hibernation is a way that some animals deal with the harshness of winter. When the weather is cold and food is in short supply, animals like hedgehogs, bears and bats become inactive to save energy. They curl up in a safe place and stay there until winter ends. During hibernation their heart rates and breathing slow down, and their body temperature drops. During hibernation, their body temperature decreases slightly, and its heartbeat also slows down from 55 to just 9 beats per minute. They barely breathe, and their body temperature is near the freezing mark. Bears are the animals most known for hibernating, but they aren't the only ones. In this animals that hibernate printable pack you will find a cut and paste activity that will help children to understand the meaning of hibernation and why some animals do this. Snakes hibernate during the cold of winter because they're cold-blooded animals. Let's also learn why do animals hibernate, from the information given in the following article. Read on and learn about spending cold, winter days doing nothing, but sleeping. Here is a list of 10 animals that hibernate. For these flying mammals, periods of torpor can last hours or months during hibernation, according to the National Park Service. Differences Between Brumation and Hibernation. Hibernating animals remain asleep the entire season and do not drink while brumating reptiles may emerge from sleep to drink water and eat. Thus defined, hibernators include many fishes, amphibians, and reptiles that overwinter with body temperatures near freezing, as well as bears and a few other mammals that spend most of the winter sleeping in dens. There are key differences between hibernating animals and brumating reptiles. Bears are one of the hibernating animals that do not wake during their hibernation and can go the entire period without eating, drinking, urinating, or defecating. Some animals hibernate (go into a deep sleep) so they can survive throughout the cold season when the weather is freezing and the food is scarce. Hibernation truly is a clever survival mechanism. The reptile may stay active for a couple of days before returning to the deep sleep. 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