Does Ambient Temperature Affect Cold-Blooded Animals' Size?

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Cold-blooded animals, such as lizards and turtles, adapt to their environmental temperatures, leading to questions about whether they expand or contract in size according to temperature changes. The discussion explores the applicability of the equation ΔV=βV0ΔT, which describes volumetric expansion, to these animals. While some participants note that cold-blooded animals can hibernate and exhibit sluggishness in colder environments, there is limited evidence to suggest significant changes in size due to temperature fluctuations. Factors like hydration levels and other biological processes complicate the relationship between temperature and size. Additionally, human height variations throughout the day, influenced by inter-vertebral disc compression, are mentioned as a parallel to the topic, highlighting the complexity of measuring size changes in living organisms.
Timmykuku
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Since cold-blooded animals, such as lizards, turtles, &c., take on the temperature of their environment, can we expect them to linearly and volumetrically expand/shrink in warmer/cooler environments?
In addition, can we expect them to follow the simple equation: ΔV=βV0ΔT, for some volume coefficient β?
 
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Timmykuku said:
Since cold-blooded animals, such as lizards, turtles, &c., take on the temperature of their environment, can we expect them to linearly and volumetrically expand/shrink in warmer/cooler environments?
In addition, can we expect them to follow the simple equation: ΔV=βV0ΔT, for some volume coefficient β?
Welcome to the PF.

Interesting question :smile: What has your reading so far suggested? Is this for your schoolwork?
 
Thanks!

So far I've found that cold-blooded animals can hibernate And become sluggish in cold environments, but not any information regarding a change in size. I was wondering if someone knew if they could possibly following something as straight-forward as the above formula.
This question arose as I thought of how i would remain the same height in summer and winter as my body would regulate its temperature. This isn't for any class, however.
 
Timmykuku said:
I was wondering if someone knew if they could possibly following something as straight-forward as the above formula.
Yes, however, the temperature coefficient and temperature range are smaller than any biometric precision/accuracy can be expected to exhibit. This is particularly relevant when one considers all the other factors affecting "size" during a normal life cycle, degree of hydration comes immediately to mind.
 
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WRT your height, it can measurably vary from day to night.
Your inter-vertebral discs (cartilage) are compressed by the weight they support and then expand when sleeping when they no longer are supporting the weight.
 
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