The outer layer of skin does not grow with the snake and periodically the snake must shed its older skin so as to be able to grow. The skin does not simply fall off, it must be removed by the snake.
So they can get bigger and shinier
Leprosy does not make skin parts to fall off but leads to loss of sensation in such areas.
NO
Skin is constantly growing and replenishing itself. Like hair, old skin must fall off to reveal the new skin under it. Typically, we don't notice that skin flakes off because the friction of clothing does all the work.
Rattlesnakes have three principal layers of skin - the epidermis, the dermis and the hypodermis. Each layer may be subdivided into additional layers.
Because it is constantly producing more skin cells
This doesn't make sense. Fall off? Fall down? Fall from grace? So I'll take a stab ... Yes the skin can fall. Probably. Regards Tony E
Dry.
why do geckos tail fall off
scales & skin like other snakes.
Yes. The outside layer is dead, but when they fall off, it's replaced by the skin underneath it.
Rattlesnakes will den up underground in caves or deadfalls, sometimes in large numbers to overwinter.
Your skin changes over time. Skin cells die, and fall off. When this happens the marks come off with it! so it is permanent but that does it!