Traits

Lop Ears are an uncommon mutation observed on Xeros. Xeros with these ears lack structural cartilage and muscle control, leading to fully hanging ears like the ears of a lop rabbit.

Desert Xeros can have larger than average ears to radiate heat, this trait is known as Desert Ears. They can be any shape (pointy fennec-like, rounded jackrabbit-like, etc.) Size can vary a bit, but is generally about 1.5 to 2x the height of the head.

Tundra Xeros can have extremely fluffy ears called Tundra Ears; the fluff is so long that the tufts of fur inside cover most or all of the visible skin and hangs outside the ears!

Folded Ears are a common mutation observed on Xeros. These ears can be various shapes and sizes depending on other mutations present, but feature ears that are bent or folded in some way.

Tufted Ears are a common mutation observed on Xeros. These ears can be any shape or size, but feature tufts of longer fur at the tips. This adaptation may have allowed Xeros to more easily determine wind direction and stay downwind of danger.

Marine Xeros can have extra small ears, or no visible ear flaps at all. This adaptation helps them be more streamlined underwater. If combined with the Marine Fin trait, they can have fins instead of ears!

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 be a solid color, or have a gradient of changing colors within the different segments. The ridges within the ear must be present.

Frilled Ears are a rare mutation observed on Xeros. They have a grooved outer edge, giving them a jagged or wing-like appearance.  

Round Ears are a unusual mutation observed on Xeros. These ears are very circular in shape, rather than the elongated, diamond-like shape Xero ears typically are.