If Julia and G Anne were in fact introduced to Motaba when he was by himself, this would have surely helped their chances with being accepted by him who was surely missing the companionship of other gorillas.It’s testament to Motaba that he successfully mated with four socially deficient females, including two of which were previously rejected from Mzuri’s troop (and one of which was later fatally injured by Otana). Youth and inexperience of the silverback has been attributed to those incidents; but Motaba’s youth transcended any expectation we could have had of him.
Following Buluman's passing in early 98, this trio would've been reintroduced to the main group of four (Betsy, Yuska, Buzandi and Bambuti). All three females (with the exception of Betsy now in her 40's) would then conceive within a year of the re-establishment of this troop.