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by Radim
2933 days ago
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Local pockets of increased heat have not been observed to nurture life? Thermals mentioned by OP are just one obvious example. I agree making use of subtle energy gradients is not trivial, but life is pretty good at it nevertheless. Even in conditions you wouldn't expect it. And no surprise — it had billions of years to evolve that way. If you wanted to be daring, you could even say that's what life is for. |
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That's absolutely not what the comment you're replying to says. What it says is:
> If this were the case, the biological density of the highest-temperature locations in the ocean should be significantly higher than average.
> Thermals mentioned by OP are just one obvious example.
Thermals are not just heat, and by and large the heat is not a source of energy (sulphur chemistry is the basal energy source of thermals). And shallow waters have much higher biological densities.
Ambient heat is only useful so far as helping the organism improve the efficiency of its chemical and biological reactions, it's extremely rare for it to be an actual energy source (because as you've been told multiple times it's extremely hard to use/harvest). And organisms are generally adapted to a certain level of ambient heat with compensatory mechanisms matching, most don't do very well if you drastically change their ambient heat levels, again aside from micro-organisms with short lifecycle which can adapt extremely quickly.