Crippled
Crippled doesn't exhibit itself a lot visibly upon upload. The Kukuri might have little weirdness in it's anatomy which isn't easily noticeable from the outside, but it's a huge hindurance to their life. They might have trouble learning to walk, chronic pain, easily exhausted... The list goes on.
Crippled mutation is inbred mutation, so it can't occur without inbreeding and can't be inherited in breeding.
A crippled Kukuri has -1 to all of its starting stats, and can not create a nest bigger than 1 egg.
Crippled mutation overrides all potions, familiars, mutations, ranks and traits in breeding.