A male white cheeked gibbon has been born at Perth Zoo, but is being hand-reared as his mother has not been able to care for him properly. Youtube video: This is the first white cheeked gibbon born since last year, but unfortunately, last year's baby, born at Adelaide Zoo to mother Viet, did npt survive.
A bit more news here,good news too,he's been named Nakai. Nearly Extinct Baby Gibbon Born at Perth Zoo - ZooBorns
This is fairly old news and I don't that it has been posted here yet but two cotton-top tamarins were born on the 26th of April.