The species I have created looks eerily humanlike, practically indistinguishable from human except for a reptile-like tail and an exposed brain.
The top portion of the skull is replaced with a glass-like dome, which exposes the brain. The species I created lives on a planet filled with diseases and bacteria that primarily affect the brain, sometimes the physical structure of it but, other times, just the behavior. The glass dome is connected to the skin by a small metal-like ring that glows slightly in the dark.
My question is, is what purpose or advantage would my species have by exposing the brain in a glass dome?
For reference, this is what I mean by “glass dome”, which in the image, the brain is exposed from under the glass dome.
Edit, the glass dome on my species heads aren’t natural, and are surgically added to the head