My daughter has just adopted Junior for Christmas - though she doesn't know it yet !! (but he was on her wish list).
In the gumpf they sent about the group, Colchester states that Junior, Mena and Sereba all arrived in 2003 from Stuttgart ...... the 4 other members of the group were all born at Colchester.
As per the family tree, there are 7 geladas altogether. The most recent birth was the female Mena, in July 2008.
There are 7 or 8 at the moment. Sereba did give birth, but sadly the offspring died and she continued to hold it. Keepers left her to come to terms with her loss. She eventually let go of the baby a week later.