What conspiracy theory do you believe to be true?

submitted by EndlessSunflowers from i.redd.it

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[–]JasonCarswell 6 insightful - 1 fun6 insightful - 0 fun7 insightful - 1 fun -  (4 children)

Here's the #1 most critical human evolutionary trait: sweat glands.

Other creatures don't have them. This is also why we're less hairy. Other creatures can't regulate their temperature as well as humans. Therefor other creatures can't have over-heating brains, or run/walk/hunt long distances, or live in diverse climates.

[–]sawboss 4 insightful - 3 fun4 insightful - 2 fun5 insightful - 3 fun -  (1 child)

Good point! I missed mentioning the migration to cold northern climates. It promoted development by freezing to death those without the brain capacity to adapt. The fact that happens less often nowadays might explain some IQ decline in Western countries.

[–][deleted] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

I think the fact that the northern peoples need to eat mostly or only animal products for at least part of the year also ties into this: the best diet with the best nutrient profile helps a lot.

[–]Reddit_sucks_dick 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (1 child)

Uh...all mammals have sweat glands...horses, dogs, cats, etc.

[–]MostlySunnySkies 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

AFAIK dogs "sweat" through their mouths only.. panting is the only way they have of cooling their bodies down. Essentially, their mouths, throat and lungs are a ventilation system distributing the cold air into their cores. It's why you have to make sure they have water on hot days also. They need to intake cold things to cool themselves off. They exhale the heat their blood has captured as water vapor as it passes through their lungs. We do the same thing through our skin.

I am not a vet however.