¿Para qué es la piel?

The video explains how human skin, though seemingly soft, acts as a protective barrier similar to the scales of animals like pangolins. It describes the production of skin cells in the epidermis, their journey to the surface, and their transformation into a protective layer. The skin's barrier effectively prevents bacteria, fungi, and viruses from penetrating, while fats deter microbes. Despite its protective role, the brain is crucial in avoiding larger threats, unlike the physical defenses of animal scales.

What new insight or understanding did you gain from this video?