Optimal cooling portals are located in glabrous skin, such as the pads of the feet and upper face.

“Okay, where the portals are, are in the glabrous skin, big word, okay? Glabrous just means no hair. So it's the hairless skin. You say, well, most of my body is without hair. No, most of your body has hair follicles. We are mammals, mammals have fur. We've lost the fur, but we still have that hairy skin phenotype all over our body, except, except for those skin surfaces where our mammal relatives didn't have fur. So the pads of the feet. And for the primates, upper part of the face. For rabbits, no portions of the ears, the inner surfaces of the ears-”