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)
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)
Laid-back rock hyraxes Daissie and Nungu are expecting their eighth litter. At the reptile house, the Bermuda skinks have a ferocious approach to mating as Poptart meets Sharkface. (S9 Ep3) [AD,S]
Spotty chocolate poison dart frog Roy faces competition from hunky newcomer Hunter. And the keepers hope there may be a first joey on the way for dusky padamelon Styx. (S8 Ep5) [AD,S]
Spotty chocolate poison dart frog Roy faces competition from hunky newcomer Hunter. And the keepers hope there may be a first joey on the way for dusky padamelon Styx. (S8 Ep5) [AD,S]
Laid-back rock hyraxes Daissie and Nungu are expecting their eighth litter. At the reptile house, the Bermuda skinks have a ferocious approach to mating as Poptart meets Sharkface. (S9 Ep3) [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)
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)
Laid-back rock hyraxes Daissie and Nungu are expecting their eighth litter. At the reptile house, the Bermuda skinks have a ferocious approach to mating as Poptart meets Sharkface. (S9 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)
Chester's Rothschild's giraffe herd expects another new arrival. A pair of Bactrian camels experience the trauma of separation. Plus, spider monkeys and Cabot's tragopan pheasants. (S8 Ep4) [AD,S]
Has a recent fire stopped Chester Zoo's hornbills from having chicks? Meerkat Huskie also has the baby blues, while Milli the sun bear has a feisty one-year-old on her paws. (S9 Ep2) [AD,S]
The cameras return to Chester, showing things the visitors never see. On Chimpanzee Island, younger males test the pecking order. And there's a fish out of water at the aquarium. (S9 Ep1) [AD,S]
Keepers are keen to breed some baby eastern bongos, a critically-endangered species of antelope. Pinstripe damba fish George needs an immediate operation to prevent suffocation. (S8 Ep6) [AD,S]
Keepers are keen to breed some baby eastern bongos, a critically-endangered species of antelope. Pinstripe damba fish George needs an immediate operation to prevent suffocation. (S8 Ep6) [AD,S]
Rhino Kitani is due to give birth. Jewel wasp Ripley searches for a cockroach to turn into a zombie egg-incubator. And four rare and mysterious tenrecs arrive at Chester Zoo. (S4 Ep1/10)
Spotty chocolate poison dart frog Roy faces competition from hunky newcomer Hunter. And keepers hope there may be a first joey on the way for dusky padamelon Styx. (S8 Ep5) [AD,S]
Chester's Rothschild's giraffe herd expects another new arrival. A pair of Bactrian camels experience the trauma of separation. Plus, spider monkeys and Cabot's tragopan pheasants. (S8 Ep4) [AD,S]
Keepers spot that Asian short-clawed otter pups are developing bald patches, threatening their waterproofing. Plus, Caribbean flamingos, Asian elephants and dik-dik antelopes. (S8 Ep3) [AD,S]
Keepers spot that Asian short-clawed otter pups are developing bald patches, threatening their waterproofing. Plus, Caribbean flamingos, Asian elephants and dik-dik antelopes. (S8 Ep3)
Rothschild's giraffe Dagmar gives birth, but her calf struggles with its first steps. 'Inseparable' blue-throated macaws Lady and Girlie are divided when Girlie goes on the run. (S8 Ep2) [AD,S]
Rothschild's giraffe Dagmar gives birth, but her calf struggles with its first steps. 'Inseparable' blue-throated macaws Lady and Girlie are divided when Girlie goes on the run. (S8 Ep2)
Chester Zoo embarks on a treatment to save Asian elephant calf Indali. Feisty Humboldt penguin Almond and her mate Walnut go house-hunting, but an intruder is eyeing up their turf. (S8 Ep1) [AD,S]
Chester Zoo embarks on a treatment to save Asian elephant calf Indali. Feisty Humboldt penguin Almond and her mate Walnut go house-hunting, but an intruder is eyeing up their turf. (S8 Ep1) [AD,S]
Aardvark Koos gets romantic with his sister in this night-time special. Can underdog seahorse Seabiscuit grow the appendage he needs to attract a mate? Plus: bats and mouse deer. (S4 Ep10) [AD,S]
Chester's male lemurs' peaceful life is changed by a female arrival. Can Permata, a young Javan green magpie, impress female Metina and help boost their endangered population? (S4 Ep5/10) [AD,S]
Rhino Kitani is due to give birth. Jewel wasp Ripley searches for a cockroach to turn into a zombie egg-incubator. And four rare and mysterious tenrecs arrive at Chester Zoo. (S4 Ep1/10) [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]
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]
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]
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]
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)