Internal micro-heating and Vanadium Dioxide muscles

So Vanadium is present in fossil fuel reserves, and in present in some organics on earth, I figure that if a planet was rich enough in Vanadium a species could ingest it, then the vanadium could be oxidized and turned into strands inside their bodies.

Now with that out of the way, I was wondering if there are any fast heating and cooling mechanisms in organics that I could use for inspiration when developing these muscles. The reason for this is that Vanadium Dioxide extends and retracts based on heat (I believe this shift happens at around 67 Celsius, and although fairly abrupt, a small enough change would allow for precise movement, albeit a little robotic), are there any mechanisms found in nature that would be capable of not only maintaining these temperature very exactly, but also creating minute changes in temperature very quickly. (if you would like me to elaborate on anything just post a comment on it and I will make an edit)

posted over 6 years ago

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