The skin of humans is a very important organ, the largest in fact. It is the largest organ of the integumentary system. Because it interfaces with the environment, skin plays an important immunity role in protecting the body against pathogens and excessive water loss.
Sweat glands are used to regulate temperature and remove waste by secreting water, salts, and nitrogenous waste (such as urea) onto the skin surface.
They are almost invisible pores that can also be used for lubrication.
–can incorporate this phenomena in to lower temperatures and increase mobility by reducing friction. Robots that are biomimetic and humanoid can also be made more realistic.