Gelison arrived at Sepilok at just one year old, and was traumatised from losing his mother. While settling in better, his skiving antics and bully-boy tactics are pushing limits.

It's feeding time for the residents of Sepilok, and the orangutans are well cared for. However, they need to learn to find food themselves, and this can be tricky.

Amputee Cedric's happy marriage to wife Robin faces its biggest challenge, Squeaker the juvenile tests people's patience and a wild penguin comes in with a life-threatening wound. "

Birthday Girl. A wild penguin receives treatment for a life-or-death wound, two home-pen inhabitants get into a nasty fight and one of the long-term residents celebrates a special occasion!

The team heads to southern Alaska to investigate sightings of a highly temperamental Bigfoot. Todd and Rhett build a huge, electrified tepee to catch it.

The rescue team begin Operation Rhino, hoping to place a long-term shelter resident in a fantastic home. Plus, two dogs need rescuing in the French Quarter.

Gelison arrived at Sepilok at just one year old, and was traumatised from losing his mother. While settling in better, his skiving antics and bully-boy tactics are pushing limits.

It's feeding time for the residents of Sepilok, and the orangutans are well cared for. However, they need to learn to find food themselves, and this can be tricky.

Amputee Cedric's happy marriage to wife Robin faces its biggest challenge, Squeaker the juvenile tests people's patience and a wild penguin comes in with a life-threatening wound. "

Birthday Girl. A wild penguin receives treatment for a life-or-death wound, two home-pen inhabitants get into a nasty fight and one of the long-term residents celebrates a special occasion!

Officers move in to close down a shelter housing hundreds of cats. Some of the animals are already dead and the team must act quickly to save the others.

Wayde and Brett design a tank for the San Jose Sharks hockey team. With replica hockey gear, the San Jose Sharks logo and of course sharks!

The rescue team begin Operation Rhino, hoping to place a long-term shelter resident in a fantastic home. Plus, two dogs need rescuing in the French Quarter.

When Justin gave his mum Bombadil, he had no idea the cat would be a gift from hell. Buddhists Tom and Pola lived in harmony until they adopted Percy.

Jackson visits New York City to meet a father and son who've been taking care of a feral cat colony in their backyard and are desperately in need of help.

Officers move in to close down a shelter housing hundreds of cats. Some of the animals are already dead and the team must act quickly to save the others.

Wayde and Brett design a tank for the San Jose Sharks hockey team. With replica hockey gear, the San Jose Sharks logo and of course sharks!

The rescue team begin Operation Rhino, hoping to place a long-term shelter resident in a fantastic home. Plus, two dogs need rescuing in the French Quarter.

Jackson enters Ellen's world, one that's crawling with neighbourhood feral cats, who she's been feeding and trying to contain virtually by herself for 20 years.

Officers from the Pennsylvania SPCA respond to a call concerning abandoned animals. But nothing can prepare them for what they discover inside a kitchen fridge.

NBA superstar Anthony Davis brings Wayde and Brett on board to transform an entire room into an aquarium! Will they be able to deliver a winning tank?

A phone call in the middle of the night leads Tia racing to deal with a family emergency. And, a homeless man reaches out for help when his dog has trouble breathing.

Examine the hunting approaches of tiger sharks and great whites, namely the polaris breach, aerial breach and surface broach. What makes these killer strategies so effective?

Eli Roth hosts SHARKTACULAR: Shark Week 2016. With Exclusive Shark Week Sneak Peeks, Viral Videos, and the greatest sharks in Shark Week history.

In a show first, Jackson helps a cat - who can't get along in its rescue home - to move in with a foster family who he's hopeful will adopt.

When trainee agent Derrick Schlitter responds to an emergency call in north Philadelphia, he ends up seeking justice for a puppy left dead in a backyard.

The ATM team race to complete a tank for a Las Vegas amusement park, the Mini Gran Prix. They design a 20 ft long tank featuring the lost City of Atlantis.

Experts test to see how anteaters eat so quickly. Plus, male humpback whales can sing for several days, but how do they do it with no vocal chords and why do they do it?

Experts test how impressive dogs' noses are at picking up scents even under water. Plus, how and why do fireflies glow? And, how do ostriches run so fast?

Costa Rica has been facing increasing numbers of human attacks and deaths from large crocodiles. Reptilian expert Paul Bedard searches for a solution.

Adventurous wildlife expert Saba Douglas-Hamilton goes on an extraordinary journey to reveal the true personality and secret life of the rhino.

Neil Darish is laying low after announcing his plan to develop the Motherlode mine into a mine tour to encourage tourists to visit McCarthy.

Kangaroos are mysteriously being mauled in Victoria, Australia. With no big cats in this part of the world, has a long-extinct predator returned?