Chris Packham goes in search of dragonflies and damselflies.
Alex and Pete welcome rescue pup Pippa, who comes with an extreme chewing habit.
Jean Johansson is with a much-loved tapir as vets try to find out what is wrong with her.
Emma looks for a very particular puppy for her son, who has Down's syndrome and autism.
Keepers try to find out how the mischievous wallabies are escaping their enclosure.
Jean Johansson joins Anne the elephant to see just how much water her trunk can hold.
A love triangle has developed between penguins Peaches, Rihanna and 'two-timer' Redley.
Jean Johansson tries to get the Siberian tigers to cool off in their pool.
The penguin keepers embark on their most ambitious project ever.
John Sweeney looks at some of the RSPCA's practices and meets former senior insiders.
32-year-old telephone psychic Delia goes in search of a big breed dog to live with her.
A wildlife cameraman from the BBC's Planet Earth arrives at the park to film the cheetahs.
Vets try to get to the bottom of what is wrong with a very sick giraffe.
Keepers attempt to keep the rhinos cool by encouraging them into a mud bath.
The life of an hour-old reindeer calf hangs in the balance.
Border collie Jura joins a ski patroller in the Highlands of Scotland.
Kate Humble tries not to get her fingers burned as she meets up with the blacksmiths.
Highlights from the third day of the 2017 Royal Welsh Show.
Highlights from the second day of the 2017 Royal Welsh Show.
Highlights from the first day of the 2017 Royal Welsh Show.
Little orphan Makena wakes to find her beloved Lualeni has gone.
The legal battle to decide whether a 'nonhuman' animal qualifies for human rights.
Nature documentary featuring the wildlife of Hawaii's famous surf zone.
The vets perform abdominal surgery on Jess the cat following a road traffic accident.
Steve Leonard rescues a big female who has dislocated her ankle fleeing from her captors.
The best way to de-stress your cat and why your recycling bin is a danger to your dog.
Custard the guinea pig is booked in for a delicate operation.
Newly qualified vet Imogen attempts to treat a herd of coughing calves.
The best way to help your pet lose weight and why it is time to ditch the rabbit hutch.
Film-maker Simon King sets out to capture a tiger kill on film for the first time.
Large animal vet Kevin treats a reindeer with an eye infection.
Steve Leonard has an emotionally charged experience trying to rescue a baby orangutan.
Steve Leonard leads a team of vets to investigate which foods are best for your pet.
The finalists compete in a triathlon - a 2km bike race, 100m swim and a 1.5km run.
Challenges test the owners' ability to immerse themselves in their dog's world.
Jean Johansson meets an endangered secretary bird and a troop of cheeky monkeys.