Hibernation and estivation are caused by different environmental conditions; low food supplies trigger hibernation, while hot and dry weather triggers estivation. Both conditions induce the same physical changes in an animal.Know More
Both hibernation and estivation lower an animal's body temperature and metabolic rate. This reduced rate of metabolism allows the animal to survive for long periods without food. Many bird species undergo a similar process called torpor.
Hibernation is always a reaction to reduced food supply, but estivation may occur in response to either lowered availability of food or conditions too hot and dry for the animal to survive. Animals burrow to cooler underground locations prior to estivation to escape these conditions. Hibernation is associated with cold temperatures because food is scarcer in cold climates during the winter months.
Birds that use torpor do so nightly during cold weather. During the night, the bird's metabolic rate and body temperature drop just as they do in a hibernating animal. This reduces the number of calories that the bird burns overnight. The hummingbird is a unique example of a bird that uses nightly torpor in a warm climate due to its very high metabolic rate. A hummingbird's body temperature can drop up to 50 percent during torpor.Learn more about Zoology
Many frog species hibernate during winter, and some estivate, which is similar to hibernation. Aquatic frogs usually hibernate underwater, while terrestrial frogs hibernate on land by burrowing into the soil below the frost line. Other terrestrial species seek out crevices in rocks or logs, or even burrow under leaf litter.Full Answer >
The function of a frogs fat bodies is to assist them in producing energy so that they can survive and function during hibernation. Frogs cannot regulate their own bodies temperatures, as this is determined by how hot or cold their environment is. Without fat bodies, they wouldn't be able to survive the several months of hibernation they endure during cold seasons.Full Answer >
Although abundant in the summertime, bees hibernate during the winter, and sometimes remain in hibernation for up to 9 months of the year. Bees, like some wild creatures, retreat to their warm shelters during the cold winter months. Bees spend a considerable amount of time hibernating and preparing for hibernation; according to the Bumblebee Conservation Trust, queen bees may spend up to three quarters of their lives holed up in winter shelters, seeking reprieve from deadly cold, diseases and starvation along with other bees in their colonies.Full Answer >
Scientists believe that a spider may be sleeping when its legs are tucked under its body, as in hibernation. There is very little research on the subject of spider sleeping habits. Spiders have a circadian rhythm of activity and rest.Full Answer >