Vet Cesar Sastre is at the park, as marmoset Bart gets a health check and a vasectomy. While the primate care team serve the capuchins a muddy breakfast to see if they demonstrate a behaviour displayed by wild capuchins. At the orangutan nursery, youngster Rieke looks to Silvestre for help when she can’t figure out the challenging new feeder. There’s been trouble brewing at Malagasy, female lemur Kaiyah has had to be removed after receiving some very nasty injuries. But there’s still tension with the male hierarchy and the fight is now on to be lead male. And Levar’s troop at the top woolly enclosure try out a puzzling new feeder.