White-cheeked gibbons Kien and Paddy are both celebrating birthdays in September! In honor of Kien’s 14th birthday and his son Paddy’s 4th birthday, guests are invited to celebrate at a party for them on September 5. The white-cheeked gibbon exhibit will be festively decorated and the gibbons will enjoy treats just for them. Guests are invited to celebrate with cake that will be generously donated by Whole Foods Market Melrose. Cake is available first-come, first-served.