Tortoises "hibernate", but a tortoise isn't endothermic

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In summary, the conversation discusses the concept of hibernation and whether it is restricted to endotherms or can also occur in ectotherms. While Wikipedia defines hibernation as only occurring in endotherms, other sources, such as anapsid.org and naturalhistorymag.com, suggest that ectotherms, such as tortoises, can also hibernate. The discussion also mentions the use of the term "dormancy" and how it may differ from hibernation. Overall, it is mentioned that Wikipedia may be technically correct but can be seen as pedantic by some experts.
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nomadreid
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In http://en.wikipedia.org/wiki/Hibernation, "hibernation" is defined as being restricted to endotherms.
But lots of sites, such as http://www.anapsid.org/hibernation.html, claim that ectotherms can also hibernate: for example, tortoises.
First: which definition is correct? If Wikipedia's definition is correct, what is a tortoise doing all those months?
 
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Thanks very much, Simon Bridge. The first article was very interesting not only in helping to answer my question but also in many other interesting facts; the second short article says that Wikipedia is technically right but is being pedantic.
 
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That's about right - specialists don't confuse the hibernation of bears with that of squirrels, but they would be more careful when they are describing a new animal or wanted to assert that a supposed case of hibernation was actually dormancy. Both versions of the long sleep are included in the common use of the term "hibernation", which is why you've seen conflicting descriptions. Academic papers will usually be more careful.
 
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1. Why do tortoises hibernate?

Tortoises hibernate as a survival mechanism to conserve energy and survive during cold temperatures and scarce food sources.

2. How long do tortoises typically hibernate for?

The length of a tortoise's hibernation can vary depending on the species and their environment, but it usually lasts for several months during the winter.

3. Do all tortoises hibernate?

No, not all tortoises hibernate. Some species, such as the desert tortoise, do not hibernate because they live in warm climates and have access to food and water year-round.

4. How is hibernation different for tortoises compared to other animals?

Tortoises are ectothermic, meaning they rely on external sources of heat to regulate their body temperature. This is different from endothermic animals, such as mammals, who can generate their own body heat. Therefore, tortoises' hibernation is not as deep as other animals and their body functions slow down but do not stop completely.

5. Can tortoises come out of hibernation on their own?

Yes, tortoises typically have an internal clock that signals when it is time to come out of hibernation. However, it is important to monitor their health and provide them with proper food and care when they do come out of hibernation to ensure they are healthy and active again.

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