Grumpy elephant Thi is expecting a baby. The chimps battle for dominance. Red panda Nima gives her partner Jung the cold shoulder. And the meerkats prove they're not as loveable as they first seem.
Inseparable penguins Rud and Spike have been a couple for 15 years. But Rud's arthritic hip could be affecting his quality of life. The tigers move house, and a tarantula risks his life to reproduce.
Chester Zoo's giraffe family have a new arrival. Frog keeper Pip creates a love den to try to get endangered frogs in the mood to lay eggs. And the aardvarks wreak havoc by night.
A potentially deadly virus hits the elephant house. Will Chester's female zebras be interested in new stallion Mac? Plus: the bizarre world of the naked mole rat.
Humboldt Penguin chicks are introduced to the main pool. Two Sunda Gharial Crocodiles arrive from France, but refuse to eat. Boris the chimpanzee takes a wild Moorhen chick hostage and keepers try to figure out why two Bornean River turtles aren't breeding.
Black Rhino female, Kitani, is introduced to a new mate, Magadi, and a baby Sumatran Orangutan is born.
Grevy's Zebras, Florence and Nadine, are about to give birth so the keepers are keeping a close eye on both. Meanwhile, warthog dad Magnum is feeling the pressure of parenting. Two of his older children are becoming increasingly hard to control.
Willie, a male Bornean Orangutan from Holland is introduced to Chester Zoo's females. Kendari, the Babirusa is about to give birth and the Small Clawed Otters have a big surprise for their keepers.
The Humboldt Penguin chicks fall ill and two females from Sweden join the Radiated Tortoises.
Oana the Anoa has a calf. The Capybaras are also having a baby boom.
Three Sumatran Orangutans escape from their new enclosure. The Meerkats are fighting for dominance and keepers are hoping for a new baby elephant.
A rare Malayan Tapir calf is born. The Sumatran Orangutans get presents and Bali, the Reticulated Python, gets a health check.
Rhino couple Beni and Asha are reunited after four years apart. Komala the Indian rhinoceros is moving to a zoo in Turkey. Bald ibis chick Britney is critically underweight. Pedro the Giant anteater is seriously ill and the Asian Mantis Bruce and deadly Natasha are introduced for breeding.
Pedro, the Giant Anteater, is seriously ill and the Orchid Mantis are introduced for breeding.
Cheetah, KinkyTail, has fallen ill and the Chimpanzees are joined by a new female from Germany. Small Clawed Otter runt, Bo, is observed by keepers.
Asian Elephant, Sundara, gives birth to female calf, Indali. The Bush Dogs have pups and keepers want the Rhino Beetles to reproduce.
Brazilian Tapir, Jenny, is seriously ill. A new potential mate for Crested Porcupine, Roxy, arrives. Keepers try to breed Black Rhinos, Kifaru and Malindi.
Two female African Wild Dogs arrive to join Chester's two males and Okapis Stomp and K'tusha are introduced for the first time.
Asian elephant, Sithami, gives birth to male calf, Aayu. Giraffe calf, Murchison, won't go outside, and a female Chameleon arrives from Paris.
A Black Rhino calf, Hazina, is born to Kitani. Four Lowland Streaked Tenrecs arrive for a new breeding program and the keepers attempt to breed the unusual Jewel Wasps.
Jung the Red panda is losing weight and his keepers are unsure why. JC the Mandrill goes to the vets for a health check and Kasarna the Sumatran tiger is having to find her own dinner.
Keepers are thrilled when Spectacled Bear, Lima, gives birth to the zoo's first ever cub, but it's not long before little Mandidi is getting into trouble. The Pygmy Marmosets have twins and the Rock Hyraxes have three pups.
Onager, Holmes, is introduced to the females for breeding. Chimpanzee, Boris, finds a new toy, but keeper, Niall, needs to get it back. Galapagos Tortoise, Charlie, is losing weight because her sister, Zuzu, is dominating her. Plo, the Villiage Weaver, needs to improve his nest building skills.
The bachelor Ring Tailed Lemurs are joined by two Belted Ruffed Lemurs. Two Javan Green Magpies are paired up in the hope of producing chicks. The Komodo Dragons are harness-trained.
Keepers prepare Christmas presents for the animals. A litter of Dwarf Mongoose pups are born.
Keepers encourage sloths, Tina and Rico to breed. Tripod the Chameleon is paired up with a potential mate.
Three Malayan Tapirs are moved to a new enclosure. Crested Porcupines, Roxy and Hendrix have a baby and some new male Golden Dart Frogs arrive.
Black Rhino, Zuri, gives birth to male calf, Ike. Sun Bears, Milli and Toni, are moved to a new enclosure and Bactrian Camel, Shan-Shan, is seriously ill.
Keepers try to breed Big Bellied Seahorses and a male Balabac Mouse Deer arrives as a potential mate for the zoo's youngest female.
A new pair of female meerkats arrive and the aardvarks are making them anxious. Subis, the Sumatran Orangutan, gives birth, and the keepers try to breed some Three-Horned Chameleons.
Stuma, the Okapi falls ill. K'mana, the African Wild Dog, produces a litter of seven pups.
Rothchild's Giraffe, Orla, give's birth to calf, Narus. Bornean Orangutan, Sareki, has a baby. Keepers try to breed a young male Sengi and keepers leave some Northern Bald Ibis outside for the first time.
The African Wild Dog pups get a health check and Sumatran Orangutan, Emma, gives birth to a new baby.
Two Spider Monkeys are born. Babirusas Sausu and Marjene are paired up for breeding. Pregnant Naked Mole-Rat sisters, Leftie and Rightie, battle for their mother's throne.
Kidepo the Giraffe is loaded into a trailer for his journey to France. Dobby the Warthog is off to Germany. Silvery gibbon Alvin is keen to get close to his partner Tilu again and Garry the Caiman Lizard is unlucky in love.
Asian Elephant, Thi, is pregnant again, but keepers are worried for both her and her unborn calf. Male Clownfish Polo, is injured while fighting with the other males for the attention of dominant female, Rosie. A new male Giant Anteater arrives as a potential mate for Bliss and Giraffe, Meru, is on a mission.
A chimpanzee named Zee Zee gives birth to a daughter. Mr. Parsons, an elderly chameleon, has a date. Gaston the Banteng gets the females in his herd pregnant.
Malayan Tapir, Solo, is being moved to another zoo in Germany. A pregnant Indian Rhino named Asha goes into labour at night. Minnie the Mantis is looking for a mate.
Meerkats Beagle and Huskie become new parents. An overactive Spider Monkey mother is causing problems. Fairy bluebirds, Terang and Bulu, lay some eggs and African Wild Dog, K'mana, has an appointment with the vet.
Mana the Bush Dog is pregnant. The Chimpanzee group is having a power struggle. Wattled Crane, Wilma, is getting a new partner named Ivan and Asian Short Clawed Otter, Wallace, is unwell.
Red Panda, Koda, arrives from Cornwall to be a new mate for Nima. The Meerkats are busy with a new pup, but all is not well. Mali and Confetti, the Red River hogs, have two demanding piglets, Lisala and Kinshasa.
Bert and Terrance, the Radiated Tortoises, are competing over female, Smooth Sides. K'tusha the Okapi is about to give birth to her first baby and Eurasian black vultures, Eric and Ethel, who haven't mated yet, may need to be separated.
"Secret Life at the Zoo Christmas" - The animals receive their presents. It's a celebration for the birth of the UK's first surviving Sun Bear cub.
Wendy, the Visayan Warty Pig, manages to escape from her enclosure, causing an emergency. Young Giraffe, Narus, is moving to a zoo in the Netherlands. Keepers try to get Pinstripe Dambas, Noel and Frida, to mate.
Elderly Cheetah, Matrah, develops a limp and is examined by the vets. Young Sumatran Orangutan, Tuti, needs to prove that she's responsible enough to look after her new sister. Rare Babirusa piglets arrive, but there are concerns for the runt of the litter.
Keepers think that two-toed sloth, Tina, may be pregnant. A young new male is introduced to the mandrill group. Keepers find a new mate for South American blue poison dart frog, Big Bertha, who loves to wrestle and try to get Asiatic Lions, Kiburi and Iblis, to mate.
Khari the dik-dik becomes a father and his fight or flight instinct goes into overdrive. A broken window in the reticulated python exhibit needs to be replaced. Kai the Pademelon meets a female for the first time and Malindi the rhino is moved into a calving pen to welcome her impending arrival.
Andean Spectacled bears, Lima, and her daughter, Madidi, aren't getting along. Blue Morpho butterflies, Macuna and Peanut, need to produce the next generation, but when they get drunk on fermented fruit, things are up in the air. After platonic mate, Diego, is moved to another zoo, Giant Otter, Icana, is introduced to a new mate.
Calypso the Flamingo loses interest in her chick, Marley, leaving his father, Rum, to care for him. Three onagers are pregnant and Rumple, the Sulawesi macaque, gives birth to her daughter, Rey.
Jaguars, Napo and Goshi, haven't been breeding. Elephant calves, Nandita and Aayu, fall seriously ill. When silvery gibbon, Tilu, gives birth to a daughter, Rayya, it's up to father, Alven, to keep their older son, Eko, busy.
Vets at Chester Zoo treat Asian elephant calf Indali for EEHV (elephant endotheliotropic herpes virus), the same virus that ended the lives of calves Aayu and Nandita in October of last year. The Cardinal fish are breeding and the Humboldt penguin colony welcomes 16 new members while penguins Almond and her mate Walnut go house-hunting.
Rothschild's giraffe Dagmar is in labor. Orangutan sisters Tuti and Siska, and their baby cousin Kesuma, rebuild their relationship after the fire that engulfed their habitat in December 2018. A blue-throated macaw goes on the run.
Asian short-clawed otters develop bald patches. Flamingo chicks are being moved to the adult aviary. A pregnant antelope's aggressive behavior is causing concern.
Keepers plan a herd birth for Orla the giraffe. Two spider monkeys withdraw from their family. Two camels experience the trauma of separation when one undergoes an operation.
A new male spotty chocolate poison dart frog is introduced to the colony. The Sulawesi macaques are ecstatic to welcome a new baby to their family.
Elderly chameleon Mr Parsons is introduced to two new prospective partners. Bongo Malaeka shows little interest in her potential mate, Moti. George, the pinstripe damba, has a lump on his gill which may be affecting his breathing.
Rothschild's giraffes Mburo and Mojo miss out on their Christmas treat. Sparky is a new camel arrival. Mascara barb Clark has a date with three females named Kourtney, Kim and Khloe. Red panda Nina gives birth to twins Huey and Tiang.
As the documentary series following life at Chester Zoo returns, on Chimpanzee Island the younger males test the pecking order. And there's a fish out of water at the aquarium. Deer couple Serena and Odin welcome their second doe.
Hornbills survived a fire that swept through their home, but it may have derailed their plans for chicks. Meerkat matriarch Huskie seems to have lost her breeding instincts. Sun bear Milli has her paws full bringing up her daughter Kyra.
Adolescent babirusa Tolo has a hoof problem. Rock hyraxes Daissie and her partner Nungu are expecting their eighth litter. At the reptile house, the Bermuda skinks have a ferocious approach to mating as Poptart meets Sharkface.
Keepers are curious when Margery the Malayan tapir is suddenly eating for two; a deadly virus is suspected of being the cause behind a female hyacinth macaw's untimely death, her partner James Bond must undergo total isolation.
A giant otter's hogging all the food while a turtle's gone off his dinner because of a belly full of gravel. And a red river hog bullied by her sisters needs to fight back.
Chester Zoo's alpha male lion is having a crisis of confidence. There's been a bloodbath among the vampire crabs. And affable Andean bear Bernie has been kicked out of the family paddock.
Newcomer Safi, a rare bongo antelope from the mountains of Kenya, is giving enthusiastic breeding partner Moti the runaround. Very soon the keepers realise why - it seems she may be about to give birth earlier than expected. Sunda gharial crocodiles Frank and Frankie need to have their blood tested - but taking a sample from one of the world's largest and most dangerous reptiles is easier said than done - and George the giant rat needs to have surgery after an X-ray pinpoints a huge lump of hard faeces in his stomach.
Vila the chimp makes a bid for the job of top female only to get hurt in a fight with rival Alice. And Chester Zoo's super-rare pink pigeons need to stop arguing and start mating.
As two rat snakes meet for the first time, will they mate or will the male eat the female for his dinner? And Tombol the orangutan is parted from his sick mum, who may not make it.
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.
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
