Banishing Creatures from a Tribe - a Bug?

[magpie]

I'm not sure if it is a bug or not, but I'd like to know.

So today I decided to cull some useless creatures from my tribe. But:

1. they remained in the tribe's family tree, which is fine, except I thought they would disappear (I think they did when I banished them in a different file, I might be just confused though), and
2. one of the creatures I banished was a female impregnated by a rogue; game days later, I discovered she gave birth to the baby (I did not place her on a nest prior to banishing her) and the damned baby became a member of my tribe and has been feeding on my tribe's supplies ever since - which sorta took me by surprise. ^^

Are these normal feats of the game or not? Thanks.

[Jojo]

Nichelings only disappear from the family tree when they don't have any close relatives/ children/ grandchildren anymore. So banished ones would stay if the had children of their own.

Yes babies born from former tribemates still are part of your tribe, I don't know why, but yeah

[magpie]

Thank you.