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Animals that hibernate include bats, ground squirrels and other rodents, mouse lemurs, the European hedgehog and other insectivores, monotremes and marsupials. Although hibernation is almost exclusively seen in mammals, some birds, such as the common poorwill , may hibernate.
Facultative hibernators enter hibernation only when either cold-stressed, food-deprived, or both, unlike obligate hibernators, who enter hibernation based on seasonal timing cues rather than as a response to stressors from the environment. A good example of the differences between these two types of hibernation can be seen in prairie dogs.
Hibernation and brumation are both natural responses to cold temperatures in animals, but they differ in key aspects. While hibernation is a state of prolonged dormancy where physiological ...
With hibernation, the warm-blooded animal will deeply sleep until spring and will not eat or drink until it awakens, whereas cold-blooded animals that brumate do not go into a deep sleep and will ...
Other animals that winter rest are badgers. Although a bear's body temperature decreases less than that of other mammals which undergo true hibernation, mostly changing around 6-7 degrees Celsius, this is a result of their large, heat-retaining body masses. [2] Their metabolism, the main indicator of hibernation, lowers significantly. [3]
When the temperatures begin to drop, snakes go into a state called brumation.This event acts as a type of hibernation for cold-blooded animals. “Cold temperatures cause reptiles and amphibians ...
This reduction in body temperature and metabolic rate allows the prolonged survival of animals capable of entering torpid states. In 2020, scientists reported evidence of the torpor in Lystrosaurus living ~250 Mya in Antarctica – the oldest evidence of a hibernation-like state in a vertebrate animal. [15] [16] [17]
These reptiles don’t migrate in the cooler seasons or go into hibernation. But snakes and alligators do go into a similar state when temperatures begin to drop to help them survive the cold.