This timelapse of a fungus kept by leafcutter ants is remarkable. Thousands of ants monitoring humidity, the nutrition needs of the fungus, removing unwanted growths, keeping their brood and harvesting food. Inside: the queen. Totally inclosed in a living home. The walls are food, a place for her eggs, they slowly renew, tended by her daughters.
As every living organism maintains itself, but on a strange macro-scale. These are your cells shedding and being replaced.