Two of Chester Zoo's zebras are about to give birth. Meanwhile, lioness Kumari seems to be losing interest in her partner, Iblis. And two of warthog Magnum's children are becoming hard to control.

Kendari the babirusa is pregnant, but otters Wallace and Annie keep throwing stones at her house. Next door, orangutan Willie is struggling to impress females Sarikei and Leia.

Penguin chick Munch fights for his life when there's disease in the colony. When young male tortoise Football muscles in on 71-year-old Bert's harem, the keepers bring in two Swedish female tortoises.

Oana the anoa and capybara Lochley both give birth. Tiger mum Kirana's sons are being moved to other zoos to start their own families. Young monkey Rocky won't pay attention to his mum's life lessons.

Four of Chester's orangutans go missing. The dominant female meerkat faces a power struggle with her own daughter. Can bull elephant Aung Bo help provide a baby to keep lone youngster Nandita company?