A pair of pig-farmers in Virginia seek help stopping predators from killing their livestock, forcing Marty Raney and his daughter Misty to suggest they abandon the free-range dream

Richard E Grant explores the evolutionary roots of greed - the act of taking too much. From hamsters, to baboons, do animals also display this seemingly human trait?

Pete Nelson and his team are challenged with creating a lighthouse treehouse that sits atop a seawall along the coast of Washington, but face a logistical nightmare along the way

Members of the team rescue a cat trapped in a drain deep underground, and help an abandoned dog in danger of freezing to death

The vets try to save a Doberman Pinscher's leg after it is found with its nails growing into the pads of its feet

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Behaviourist Jackson Galaxy investigates the behaviour of cat Einstein, which is mild until it sees fellow feline Izzy - and then goes on the attack. Plus, an expectant couple worry about their pet's mood swings

Exploring the birthplace of the domestic shorthair. Plus, a look at how many breeds compete at Cat Fanciers' Association-sponsored shows, and the prime feline task in New York

Game Wardens race to confront reckless jet skiers wreaking havoc at a boat ramp. Plus, a crabber turns hostile when caught without a fishing licence

Denver vet Dr Jeff helps an injured tiger at a wild animal sanctuary. Dr Amy tackles exploratory surgery on a cat with a strange appetite

Dr Jeff operates on a dog rushed in after a growth on its neck ruptures. The team performs a risky procedure on a pair of rescued miniature donkeys

When an aggressive dog is in danger of being put down, Tia heads to South Carolina to save him. Plus, parolee Toney Converse takes on more responsibility

Villalobos prepares for Hurricane Barry with Tia and the crew urgently ensuring the animals' safety. A cancer survivor hopes to rescue an unwanted dog

Jackson Galaxy visits a feline that works with its guardian to help cats with special needs find forever homes. He also learns about cats' roles in a prison programme

Behind the scenes of the University of Pennsylvania School of Veterinary Medicine. School is in full swing and in just a few months the students will be doctors - but first they must first pass their final rotations

Pete Nelson and the team build a charming treehouse in the style of a rustic river shack along the banks of the Mississippi