So, a friend and I were talking. We talk about a lot of things. And I know people bring this up, but they don't really expand on the idea much. Inbreeding is a realistic thing that happens with lions. Mainly the ones that aren't centered around mane mutations, like the Botswana(maned lioness) lions.

Anyway, my friend and I were talking about how the inbreeding could cause a fertility drop to the next of kin. Whether it be as drastic as 20% or as little as 5%. (or smaller if need be) Just like how it isn't common for a lioness to give birth to four cubs, the higher fertility drops will be rarer as well.
And/or
Another way it can effect the lions, which many will not agree I understand why, is that it may give you a higher chance of a lethal mutation. Only by a very small percent though. It can only bring it up by 0.01 or 0.001%. So if you have a cub that is 100th generation of inbreeding you would have a 1% chance of a lethal mutation or a 0.1% chance of a lethal mutation. Though, the perk chance can be lowered if need be. The mutation chance percentage will actually start to stake as the inbreeding continues each generation.

If you use a male outside of the pride the next gen, will not have any of the inbreeding boost. You will loose all of the negative perks. The same goes with the inbred male or main male breeding with a lioness outside of the pride. Unless the lioness is related, the perk will be lost.
Please.... I love new ideas and questions. <3
If you have any suggestions or questions, I am willing to edit this so that it may be clearer or be harder to take advantage of. x3 Sorry.
Please point out the flaws or anything you are confused by. It will help.

Other ideas/ adaptations
Make the mutation boost higher, lethal mutation a bit higher than the average. Make infertile lion/lioness that can't be changed. Inbreeding could cause stillborn or miscarriages
-37899

Lowers stats in the next of kin or next generation.
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