The Secret Life of the Zoo

With Christmas approaching, the keepers at Chester hope to include the animals in the festivities, but some of the animals aren't getting into the Christmas spirit. Christmas stockings filled with treats have been hung up for the Sumatran orangutan family, but eight-year-old Indah decides to open everyone's stocking for them. Sun bear couple Toni and Millie have been together for three years, but their relationship seems to have come off the rails. Can a trial separation make the heart grow fonder? While many of the animals are getting edible Christmas treats, reticulated python Bali has been off her food for over three months and there's growing concern for her welfare. She needs a health check but she's 23 feet long and weighs almost 80 kilos, so ten brave keepers are needed to catch her, in order to get to the bottom of her eating disorder.

Young orangutan Indah decides to open all of her family's Christmas stockings. There's a Christmas baby in the tapir house. Ten brave keepers have to catch reticulated python Bali for a health check.

The keepers at Chester Zoo are busy making gifts for the animals. But there's chaos when the chimps seek out their parcels. Plus: rhinos, ants and dwarf mongooses.

This deep-dive special episode explores the extraordinary underwater world of Chester Zoo, featuring blind fish, rare amphibians and a frisky penguin.

Asian elephant Thi is pregnant with her ninth baby while rhino hornbill Liv is yet to produce any offspring. Will a new love nest help?

Some of Chester Zoo's animals are happily together forever, including penguins Rudd and Spike, and sloths Tina and Rico, who spend up to 18 hours a day fast asleep

A look back at some of Chester Zoo's expert escapologists, from Sumatran orangutans to blue-throated macaws and an Andean bear cub on the adventure of a lifetime

A look back at some memorable moments with the animals of Chester Zoo, including a bunch of chimps in a power struggle, a tearaway giraffe, and a senior tortoise in the grip of a midlife crisis

A look at some memorable new families, including new arrivals for a rare breed of horse, a couple of squabbling red pandas, and a breeding phenomenon in Chester Zoo's aquarium

A look at some memorable moments of animals behaving badly at Chester Zoo. The chimps are up to no good. Two noisy otters are in for a shock when they're re-housed alongside the orangutans.

More memorable moments from Chester Zoo as baby elephant Indali receives cutting-edge treatment for a deadly virus. Caiman lizard Gary keeps diving into an empty pool. Plus: camels, and clownfish.

Memorable moments from Chester Zoo, as a pair of Malayan sun bears need help with mating; and an elderly chameleon gets a new lease of life when he's matched with a pair of lively females

Compilation of highlights from previous episodes. An orangutan has to be separated from his mother for the first time when she undergoes a CT scan to check for a life-threatening infection. The zoo's cardinal fish undergo a breeding programme, but one struggles to protect his offspring from his circling, cannibalistic neighbours.