quote:
Evolutie.
Lips: For someone living in hot climatic conditions, cooling down the body is critical for their survival. Our body has many cooling mechanisms and one of them is simply disseminating heat when it comes in contact with colder air (simple thermodynamics). This however requires larger surface area so that more heat can be disseminated.
Given that a significant portion of breathing also happens through the mouth (especially when exposed to heat), lips are pretty much like the gateway for colder air being inhaled and exhaled. So, the larger the lips, the more heat that can be disseminated. Thus, people living in hotter climatic conditions gradually evolved to have bigger lips.
The opposite is true for people in colder climates. They get a survival advantage if they are able to retain as much heat as possible and so they gradually evolved to have smaller lips thus limiting the amount of heat that can escape when cold air brushes past their lips while inhaling and exhaling.
Indien 't hier in 't vaderlandt zoo gelegen is dat men de waarheit niet magh spreeken, zoo is 't er ellendigh gestelt. Nochtans zal ik die spreeken zoo lang als myn oogen open staan. Zyn trouw en oprechtigheit.