It are her 4th and 5th baby, the gender is already known and the 2 are a male and a female. Other recent births include bighorn sheep, forest reindeer and 2 white bearded gnu.
Article and photos of the gorilla-twin : Rare Gorilla Twins Surprise Staff at Burgers' Zoo - ZooBorns
Sunday I could barely see them, because of a very caring mother . As far as I know they are still doing fine. Other news: 3 greater flamingo's hatched, there are now 4 young white bearded wildebeasts, so with a group of almost 20 animals, they now have the biggest group in Europe. Further 2 bighorn sheep were born, as is a siamang
I visited here last week, I have to say from the zoos I've seen in Europe so far this is easily in the top 5. It has only a few enclosures that I feel could be better, but overall a fantastic experience. On a side note I also went to Rotterdam, and this easily fits into a Euro top 10 too.
Recently some ( number unknown to me ) cheetas born at Burgers Zoo. Sofar not visuable for the public.