Keyorii (much like any other living creatures) can have mutations. They can have many types of differences from a unmutated keyorii but a few known mutations include:

Permanent hypno eyes: a mutation caused by too my of their aphrodisiac in the system. It does typically affect the Keyorii itself too much, however it makes the eyes appear hypno all the time. It can, on rare occasion, affect an adult Keyorii to have a higher sex drive however this is typically unlikely.

Multiple wings: a mutation caused when a Keyorii egg begins to develop a second pup however it doesn’t get passed the first few stages

Pouches: caused by extra skin developing on the stomach. The body folds the skin inward and develops a pouch-like area that can be used similar to how a kangaroo would

Multiple heads: see; multiple wings development

Lack of tufts: caused by a sort of alopecia found around the under eye and knees/elbows

Multiple limbs: see; multiple wings development

Heat pits: caused by an unknown mutation thats believed to stem from the species possibly being related to snakes in a way

Dark sclera: caused by large amount of melanin in the back of the eye sockets that reflects outward to make the eyes appear darker

Multiple tails: see; multiple wings development

Taur/centaur: similar to any multiple sets mutation. Its caused by two pups being

Please check out these posts for more info on the species
http://www.furaffinity.net/view/34388008/
http://www.furaffinity.net/view/34388075/
http://www.furaffinity.net/view/34388106/
http://www.furaffinity.net/view/34388146/
http://www.furaffinity.net/view/34388172/

Keyorii are an open species created by me