I know that we get an achievement for our first naturally born mutated cub - but what about all of the ones that grow at two years old after that?

The odds are by now, most of us may of sold a lion/ess at 1yrs who could of ended up with a 2yr mutation. Which is great for the new owner, but not so great for the original breeder.

The idea is simply that where we have the achievement 'Have a cub born with a mutation.' just have other layers to it simply as:

'Have two cubs born with a mutation within the pride'

and so on. It may be a lot of achievements for some people who already have multiple, but it's easier to tell if another cutie mutie has joined your pride at a young age.