SHREK:
For your information, there's a lot more to ogres than people think.
Example? Okay, um, ogres are like onions.
No! Layers! Onions have layers! Ogres have layers! Onions have layers.
You get it? We both have layers.

Orgres have layers, like onions. We may not know that there are layers for onions, until we peel of each layer and find a new layer.
Yet each layer of onions is different to another, the outside layers are dry and rough.

Maybe it is due to the environment, losing moisture and being in contact with rough surfaces.
Or maybe it is genetically designed as such to protect the onion from the outside environment.

Perhaps orgres have layers, only due to the harsh environment that the outter layer becomes rough and dry, like the onion.

Orgres have layers. Do you have layers?