I find it really quite irritating when my 'Unsorted Lions' list lists several unsorted lions, and yet when I click on it they are not there because they are newborn cubs. Same with being in a cave -- although the cubs are listed on the overview and on the female's page, you cannot pounce to one or another's pages inside the cave (once you're on a lion's profile), and they're not even on the profile drop-down. This makes sorting through large amounts of cubs much more time consuming and frustrating.

I suggest having all nursing cubs automatically listed in their mother's cave upon birth, with no manual way to change it. When they are weaned, they will be put in the unsorted lions tab (as they do now), and you can sort them then. I realize that nursing cubs can only be sorted into their mother's cave now, but you have to manually do it and it requires jumping through a lot of hoops. I say let's just remove that and make the cubs being in their mother's cave a given until they are weaned. This way, it removes unnecessary work and pretty much just simplifies what's already in place.