Chameleons Charles and Eddie try to impress new arrival Ruby. Orangutan sisters Emma and Subis are expecting babies by male Puluh at the same time. The aardvarks are making the new meerkats anxious.

African painted dog K'mana is pregnant with Chester's first ever litter of this endangered species. Meanwhile, can atlas moths Dave and Simon find mates during their five-day lifespan? Plus: okapis.

Giraffe Orla is due to give birth. Orangutan baby Tombol tests his luck with the gibbons. Overconfident ibis chick Professor X gets into trouble. Can a timid sengi take over his dad's breeding duties?

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? Plus: penguins, beetles and painted dogs.

Spider monkey Kiara seems more interested in hanging out with the youngsters than looking after her baby. Baby capybara Henry enjoys having the attention of all the female capybaras.

The keepers struggle to transport a suspicious warthog and a giraffe. Caiman lizard Gary keeps diving into the pool headfirst, even when it's empty. A baby gibbon is a passion killer for its parents.

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

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.

The zoo's Sumatran orangutans are recovering from the horrific fire that engulfed their habitat in December 2018. Rothschild's giraffe Dagmar gives birth, but her calf struggles with its first steps.

Keepers spot that Asian short-clawed otter pups are developing bald patches, threatening their waterproofing. Plus, Caribbean flamingos, Asian elephants and dik-dik antelopes.

A pair of Bactrian camels experience the trauma of separation. Chester's Rothschild's giraffe herd expects another new arrival. Plus, spider monkeys and Cabot's tragopan pheasants.

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.

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.

As the festive season approaches at Chester, the zoo's youngsters - from giraffes to monkeys - are about to have their first Christmas, and there are other newbies, too.

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 couple of giant otters welcome four pups and must learn the difficulties of parenthood; a Red River hog struggles to survive alongside her two sisters; zookeepers try to help a sickly Batagur turtle that has them concerned.

The zookeepers run into obstacles as they try to transport an Asiatic lion king Iblis and his kin to a new habitat; a fight breaks out in the vampire crab exhibit; an Andean bear suffers from a broken heart and a toothache.

Zookeepers work through trouble as they try to pair Chester's newest bongo couple; a trio of silver-eared mesia chicks must find new shelter when a major storm destroys their nest; a Malagasy giant rat must undergo surgery.

A violent fight breaks out when a new chimpanzee attempts to overtake the current matriarch; the Zookeepers excitedly await confirmation that two Chinese croc lizards are expecting; two pink pigeons struggle to raise their young.

A sickly orangutan named Sarkiei mus be quarantined away from her prized son; when a mother giraffe named Dagmar becomes too thin, the zookeepers consider separating her from her calf; a male giant otter pup refuses to eat.

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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.

Young rat snake Sen meets male Jakob, but will they mate or will Jakob eat Sen for dinner?. When Bornean Orangutan Sarkiei becomes sickly, keepers must separate her from prized son Tombol and Rothschild's giraffe Dagmar becomes dangerously thin, keepers must determine whether or not to part her from calf Mburo. The male giant otter pup is struggling to eat and walk.

When dik dik Kahri becomes a dad, his fight or flight instinct goes into overdrive. Meanwhile, the keepers face the dangerous task of replacing a broken window in the reticulated python habitat.