In plants[ edit ] Thermogenesis occurs in the flowers of many plants in the Araceae family as well as in cycad cones. Heat is produced by breaking down the starch that was stored in their roots,  which requires the consumption of oxygen at a rate approaching that of a flying hummingbird. For example, the skunk cabbage is not frost-resistant, yet it begins to grow and flower when there is still snow on the ground.
In plants[ edit ] Thermogenesis occurs in the flowers of many plants in the Araceae family as well as in cycad cones. Heat is produced by breaking down the starch that was stored in their roots,  which requires the consumption of oxygen at a rate approaching that of a flying hummingbird.
For example, the skunk cabbage is not frost-resistant, yet it begins to grow and flower when there is still snow on the ground. Desert lizards are ectotherms and so unable to metabolically control their temperature but can do this by altering their location.
They may do this, in the morning only by raising their head from its burrow and then exposing their entire body. By basking in the sun, the lizard absorbs solar heat. It may also absorb heat by conduction from heated rocks that have stored radiant solar energy. To lower their temperature, lizards exhibit varied behaviors.
Sand seas, or ergsproduce up to They also go to their burrows to avoid cooling when the sun goes down or the temperature falls. Aquatic animals can also regulate their temperature behaviorally by changing their position in the thermal gradient.
Animals also engage in kleptothermy in which they share or even steal each other's body warmth. In endotherms such as bats  and birds such as the mousebird  and emperor penguin  it allows the sharing of body heat particularly amongst juveniles.
This allows the individuals to increase their thermal inertia as with gigantothermy and so reduce heat loss. Other animals exploit termite mounds.
Their fur grows more densely to increase the amount of insulation. This minimizes heat loss through less insulated body parts, like the legs, feet or hoovesand nose.
An ostrich can keep its body temperature relatively constant, even though the environment can be very hot during the day and cold at night.
Hibernation, estivation and daily torpor[ edit ] To cope with limited food resources and low temperatures, some mammals hibernate during cold periods. To remain in "stasis" for long periods, these animals build up brown fat reserves and slow all body functions.
Some bats are true hibernators and rely upon a rapid, non-shivering thermogenesis of their brown fat deposit to bring them out of hibernation. Estivation is similar to hibernation, however, it usually occurs in hot periods to allow animals to avoid high temperatures and desiccation.
Both terrestrial and aquatic invertebrate and vertebrates enter into estivation. Examples include lady beetles Coccinellidae North American desert tortoisescrocodilessalamanderscane toads and the water-holding frog.
Normal human temperature[ edit ] Main article: Normal human body temperature Previously, average oral temperature for healthy adults had been considered In Poland and Russia, the temperature had been measured axillary. Recent studies suggest that the average temperature for healthy adults is Variations one standard deviation from three other studies are: Monkeys also have a well-marked and regular diurnal variation of body temperature that follows periods of rest and activity, and is not dependent on the incidence of day and night; nocturnal monkeys reach their highest body temperature at night and lowest during the day.A special circulatory adaptation known as countercurrent heat exchange enables both of these animals to maintain the appropriate body temperature in their extremities, and this is only one of the many clever adaptations mammals have evolved over the last hundred million years to .
But for animals and plants this is not the case and if they want to inhabit areas with better survival opportunities (e.g. less predators, more nutrients), they have to adapt to such conditions through evolutionary processes.
In this article, I will present some examples of such adaptations for temperature regulation weather in cold or hot climate. Temperature regulation is, perhaps, the most variable and the most noticeable form of homeostasis.
All enzymes have their happy place, and in their case, it happens to . Here's a short list of normal rectal temperature ranges for a few animals commonly treated by veterinarians. I've done the work of sorting them for you.
Here you are, in descending order, sorted by the highest temperature in the reported range. Temperature regulation, or thermoregulation, is the ability of an organism to maintain its body temperature when other temperatures surround it.
An organism maintains homeostasis, a steady internal state, only if its body temperature stays within prescribed limits. And yet, other animals change their body temperature only during certain times of year.
No matter the method, all animals regulate their body temperature.