The Secret Life of the Zoo at ChristmasWith Christmas fast approaching, the keepers try to get the animals into the festive spirit. Stockings have been hung for the Sumatran orang-utan family, only for eight-year-old Indah to open everyone else's. There is concern about the health of reticulated python Bali, who has been off her food for more than three months. She needs a check-up, but at 23ft it takes 10 brave keepers to catch her. Malayan tapirs Marjorie and Bitong welcome a baby, however the new dad is not happy when his daughter comes between him and his partner, and sun bear couple Tony and Millie's relationship is growing stale - will a trial separation help?