Since as far as we know, in breeding does not have an affect in the game. Most don't care, and mostly interbreed to increase chances of a patches or pie passing on, or perhaps to get a high stat cub. But what if in breeding DID have an affect? While mutations are rare, and should stay rare, there should be consequences to inbreeding and incest in your lion pride much as there would be with any family line of lions or any animal for that matter. For example:

- In breeding will actually DECREASE some states such as smarts, skill, and strength
- In breeding can have a permanent affect on a lionesses fertility, and perhaps a King's as well.
- In breeding can shorten the life span of not just your King, but a lionesses as well. i.e your king may only live to be 10 or so despite being able to live to 16-17.

perhaps some new mutations can occur with in breeding such as:

- a cub born missing a limb whether it be a fore or back limb, paw, ear, tail, etc. like being deaf or blind your lioness may not be able to hunt with a missing limb, and a lion can't become King if its missing one.
-missing a vital organ resulting in an early death or perhaps a stillborn.

Anyways these are just some ideas I think would be cool