Sloths Tina and Rico aren't getting on. Whenever Rico tries to get close to Tina, she fights him off. But Tina starts to put on weight. Is she pregnant? Or just eating too much? (S7 Ep3) [AD,S]
The keepers face the dangerous task of replacing a broken window in the reticulated python habitat. Dusky pademelon Kai turns shy when he meets a female for the first time. (S7 Ep4) [AD,S]
Otters Diego and Icana have never mated; can new male Tarubu light Icana's fire? Andean bears Lima and Madidi aren't getting on. And two butterflies get drunk on fermented fruit. (S7 Ep5) [AD,S]
This series captures in detail the behaviour of the animals at Chester Zoo. Grumpy elephant Thi is expecting a baby. Red panda Jung gets the cold shoulder from his partner Nima. (S1 Ep1/6) [AD,S]
Penguins Rud and Spike have been a couple for 15 years and are inseparable. But Rud's arthritic hip may be affecting his quality of life. Meanwhile, the tigers are moving house. (S1 Ep2/6) [AD,S]
Chester Zoo's giraffe family have a new arrival. Frog keeper Pip creates a love den to get some endangered frogs in the mood to lay eggs. And the aardvarks wreak havoc by night. (S1 Ep3/6) [AD,S]
Otters Diego and Icana have never mated; can new male Tarubu light Icana's fire? Andean bears Lima and Madidi aren't getting on. And two butterflies get drunk on fermented fruit. (S7 Ep5) [AD,S]
The keepers face the dangerous task of replacing a broken window in the reticulated python habitat. Dusky pandemelon Kai turns shy when he meets a female for the first time. (S7 Ep4) [AD,S]
Sloths Tina and Rico aren't getting on. Whenever Rico tries to get close to Tina, she fights him off. But Tina starts to put on weight. Is she pregnant? Or just eating too much? (S7 Ep3) [AD,S]
Can adolescent orangutan Tuti prove she's responsible enough to hold baby Kesuma? Dangerous turtle Shrek gets a new mate. And tiny babirusa piglet Tomini is struggling to survive. (S7 Ep2) [AD,S]
Giraffe Narus is being moved to another zoo, but getting him into a horsebox isn't easy. And can the keepers encourage mono-browed fish Noel Gallagher and Frida Kahlo to mate? (S7 Ep1) [AD,S]
Tortoises Burt and Terrance, who've been best mates for 70 years, compete for the affections of breeding female Smooth Sides. Pregnant okapi K'Tusha is due to give birth. (S6 Ep7) [AD,S]
Jaguars Napo and Goshi haven't been breeding. Will training Napo to be more assertive change that? Young elephants Aayu and Nandita are seriously ill. Plus: gibbons and katydids. (S7 Ep7) [AD,S]
Baby meerkat Junior is struggling to get enough food. Red panda Nima's new mate, Koda, chases her up a tree. And a shy penguin isn't socialising with his colony. (S6 Ep6) [AD,S]
Three of Chester Zoo's rare onagers are pregnant at the same time. A flamingo loses interest in mothering her chick. And a baby macaque gets picked on by some older females. (S7 Ep6) [AD,S]
There's a power struggle on chimp island. Otter Wallace is struck down by a mystery illness. Bush dog Mana is pregnant. And is romance in the air for wattled cranes Wilma and Ivan? (S6 Ep5) [AD,S]
Otters Diego and Icana have never mated; can new male Tarubu light Icana's fire? Andean bears Lima and Madidi aren't getting on. And two butterflies get drunk on fermented fruit. (S7 Ep5) [AD,S]
Young meerkats Beagle and Huskie become parents for the first time. And can painted dog Ville look after his seven adolescent pups on his own while the vets check up on their mum? (S6 Ep4) [AD,S]
The keepers face the dangerous task of replacing a broken window in the reticulated python habitat. Dusky pandemelon Kai turns shy when he meets a female for the first time. (S7 Ep4) [AD,S]
Pregnant rhino Asha goes into labour at night. Mantis Minnie is looking for her first sexual partner, but female mantises have a habit of eating their partners while mating. (S6 Ep3) [AD,S]
Sloths Tina and Rico aren't getting on. Whenever Rico tries to get close to Tina, she fights him off. But Tina starts to put on weight. Is she pregnant? Or just eating too much? (S7 Ep3)
Can adolescent orangutan Tuti prove she's responsible enough to hold baby Kesuma? Dangerous turtle Shrek gets a new mate. And tiny babirusa piglet Tomini is struggling to survive. (S7 Ep2)
There's a new arrival in the chimp group at Chester, elderly chameleon Mr Parsons has a romantic date, and Gaston the banteng bull has made three females in his herd pregnant. (S6 Ep2) [AD,S]
Giraffe Narus is being moved to another zoo, but getting him into a horsebox isn't easy. And can the keepers encourage mono-browed fish Noel Gallagher and Frida Kahlo to mate? (S7 Ep1) [AD,S]
Male onager Holmes chases every female in sight - including the camel next door - when he's released into the female paddock in mating season. Plus: tortoises, chimps and more. (S4 Ep4/10) [AD,S]
Andean bear cub Madidi goes on an adventure into a neighbouring paddock. Young elephant Nandita is desperate to befriend babies Aayu and Indali but is too boisterous for them. (S4 Ep3/10) [AD,S]
Mandrill Ludo gets over-friendly with his dad's girlfriend when his dad is at the vet's. Red panda Jung is losing weight and no one knows why. Plus: tigers, and penguins. (S4 Ep2/10) [AD,S]
Tortoises Burt and Terrance, who've been best mates for 70 years, compete for the affections of breeding female Smooth Sides. Pregnant okapi K'Tusha is due to give birth. (S6 Ep7) [AD,S]
Baby meerkat Junior is struggling to get enough food. Red panda Nima's new mate, Koda, chases her up a tree. And a shy penguin isn't socialising with his colony. (S6 Ep6) [AD,S]
There's a power struggle on chimp island. Otter Wallace is struck down by a mystery illness. Bush dog Mana is pregnant. And is romance in the air for wattled cranes Wilma and Ivan? (S6 Ep5)
Young meerkats Beagle and Huskie become parents for the first time. And can painted dog Ville look after his seven adolescent pups on his own while the vets check up on their mum? (S6 Ep4) [AD,S]
Pregnant rhino Asha goes into labour at night. Mantis Minnie is looking for her first sexual partner, but female mantises have a habit of eating their partners while mating. (S6 Ep3)
There's a new arrival in the chimp group at Chester, elderly chameleon Mr Parsons has a romantic date, and Gaston the banteng bull has made three females in his herd pregnant. (S6 Ep2)
The Secret Life of the Zoo returns for a new run. The keepers think pregnant elephant Thi is three months overdue. Rampant giraffe Meru relentlessly chases the females in his herd. (S6 Ep1) [AD,S]
Mr Parsons the chameleon meets a new mate, Daphne from Paris. Young giraffe Murchison faces the great outdoors for the first time. And another baby elephant is born. (S3 Ep7/7) [AD,S]
Rare okapi Stomp injures K'Tusha with his horn when he tries to mate with her. Two African painted dogs compete to impress two new females. Plus: turtles and cassowaries. (S3 Ep6/7) [AD,S]
Can rhino Kifaru - who has arthritic knees - mate with younger, taller and heavier female rhino Malindi? Tapir Jenny falls ill. Widowed porcupine Roxy meets a new, younger mate. (S3 Ep5/7) [AD,S]
An elephant calf is born at Chester Zoo. Bush dog Franco has got his sister-in-law pregnant. And rhino beetle Sheldon has a damaged wing case; can he impress female beetle Alice? (S3 Ep4/7) [AD,S]
The arrival of a new female chimp causes upheaval at Chester Zoo, baby otter Bo goes missing, cheetah mum Kinky Tail is on the operating table, and the meerkats steal food. (S3 Ep3/7) [AD,S]
Young giraffe mum Tula gives birth, while this year's brood of penguin chicks face the ordeal of joining the main pool, where they must compete for fish with the adult penguins. (S3 Ep2/7) [AD,S]
The series that goes behind the scenes at Chester Zoo. Can mantis Bruce survive mating with deadly Natasha? Rhino couple Beni and Asha are reunited after four years apart. (S3 Ep1/7) [AD,S]
Four of Chester's orangutans vanish. The dominant female meerkat is challenged by her own daughter. Can bull elephant Aung Bo help provide a baby to keep young Nandita company? (S2 Ep5/6) [AD,S]
Oana the anoa and capybara Lochley give birth. Tiger mum Kirana's sons are moved to other zoos to start their own families. Young monkey Rocky won't heed his mum's life lessons. (S2 Ep4/6) [AD,S]
When young male tortoise Football muscles in on 71-year-old Bert's harem of females, the Chester Zoo keepers introduce two Swedish female tortoises to the group. (S2 Ep3/6) [AD,S]
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. (S2 Ep2/6) [AD,S]
The keepers struggle to transport a suspicious warthog and a giraffe. Meanwhile, caiman lizard Gary keeps diving into the pool headfirst, even when it's empty. Plus: gibbons. (S5 Ep6/6) [S]
Baby capybara Henry enjoys having the attention of all the female capybaras. Two pregnant naked mole-rat sisters battle for power. Plus: spider monkeys and babirusas. (S5 Ep5/6) [S]
Young orangutan Tripa is half the size of other orangutans his age. He relies on his mum for everything but can he become independent when she has a new baby? (S5 Ep4/6) [S]
Giraffe Orla is due to give birth. Orangutan baby Tombol tests his luck with the gibbons. Overconfident ibis chick Professor X gets himself into troubled waters. Plus: sengis. (S5 Ep3/6) [S]
Giraffe Orla is due to give birth. Orangutan baby Tombol tests his luck with the gibbons. Overconfident ibis chick Professor X gets himself into troubled waters. Plus: sengis. (S5 Ep3/6) [S]
African painted dog K'mana is pregnant with Chester's first ever litter of this endangered species. And can atlas moths Dave and Simon find mates during their five-day lifespan? (S5 Ep2/6) [S]
Golden poison frog Pablo has lost interest in his partner Maria, so bad boy El Loco is brought in to shake things up. Baby porcupine Marion faces the meerkat mob. Plus: chimps. (S4 Ep8/10) [AD,S]
Golden poison frog Pablo has lost interest in his partner Maria, so bad boy El Loco is brought in to shake things up. Baby porcupine Marion faces the meerkat mob. Plus: chimps. (S4 Ep8/10) [AD,S]
Orangutan sisters Emma and Subis are both expecting babies by male Puluh at the same time. The aardvarks are making the new meerkats anxious. Plus: chameleons and vampire crabs. (S5 Ep1/6) [S]
Three-legged chameleon Tripod goes speed-dating. And sloth Tina has been giving her partner Rico a hard time, but the keepers have a plan to bring them closer together. (S4 Ep7/10) [AD,S]