Traits

These ears are unique to Hollow Xeros, and while they fit the shapes and sizes you expect from a standard Xero, they do have an adaptation unique to their type. The ear's interior cartilage is ridged, acting as a type of acoustic focusing lens to help sharpen sounds for positional accuracy in the dark. Hollow ears can have darker ridges, or a gradient of colors within the different segments. These are the only kind of ear that can have gradients  of different colors within them.