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7 How do homeotherms respond when ambient temperature falls below body temperature?
Wiki User
∙ 14y ago
Clearly no clear answer to this question. It depends on the group of animal, sometimes even differs on population or individual level.
There are animals who just minimize temperature loss by reducing blood flow in non-vital organs, e.g. humans do so. (Also, they might shiver, get goose pimples etc.)
Some are changing behaviour, e.g. starting to migrate, eventually triggered by the physiological stimulus of the temperature.
There are ones who try to hibernate, first changing behaviour and then reducing blood flow even more and changing a lot of their physiology.
Remember: the reaction might differ even on individual level as you can easily see in birds. Blackbirds used to be migrating birds. Now, a huge part of the populations are sedentary birds.
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Wiki User
∙ 14y ago
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