Forrest returns to his childhood home in Zimbabwe searching for the extinct Cape lion after numerous sightings of a similar size lion with a black mane.

Journey around the world and discover how dogs became one of the most valued animals on the planet. From wild predators to friendly pets- this is the story of man's best friend.

Fisherman and adventurer, Jeremy Wade, travels to Alaska to discover what has happened to the king salmon - the power athletes of the salmon world.

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.

When Philadelphia police uncover a massive dog-fighting operation, the Pennsylvania SPCA is called in to investigate, leading to a grisly exhumation in a front yard.

Owners Lisa and Callu are worried about Merlin, a Great Dane who goes over on his front toes when he walks. Neurologist Annette Wessman suspects a problem in his spine or skull.

Billy falls seriously ill and is forced to seek medical help. Meanwhile, the kids are left to fend for themselves and build a large raft to help move lumber.

Scout is so afraid of his tormentor, Caramel, he literally lives inside a kitchen cabinet. Allison's adopted Bengal cat, Cheeto, can use the toilet - but attacks her.

All giant pandas belong to China regardless of where they are born. Follow Mei Sheng, a giant panda born in San Diego, as he goes to Wolong - the natural homeland he's never seen.

Explore the incredible creatures that inhabit Costa Rica, one of the most ecologically diverse places on earth. Meet the rare and secretive ocelot and puma, and much more.

Scientists around the world are working on projects dealing with space and space travel - extraterrestrial life, colonising Mars, the Big Bang and rocket development.

Tigger the cat is monitored closely for unusual eating habits. Plus, Dr. Jeff cautions an owner of the perils of buying online when she brings in her unwell puppy.

ATM gets a surprise call from their favourite customer, Shaquille O'Neal. The retired NBA superstar loves his first tank and is back for a second.

When officers raid an illegal cockfighting ring, the quest for justice uncovers a shocking case of deliberate cruelty. But the bird's owner denies any wrongdoing.

In this special edition, join the rookies to discover what it is like learning to fight crime in one of the toughest cities in the US.

The latest pet craze in the US? Owners pimp out their poodles to compete in grooming contests. Plus, in Kenya, a family owns domesticated Giraffes.

Mexico is an ancient land, full of diversity and mystery. It is home to a vast wilderness of oceans, deserts, jungle, and unique creatures that are found nowhere else on earth.

Pete and the crew channel Frank Lloyd Wright for a triple-decker treehouse by Lake Barkley in Kentucky - it will offer a bedroom, kitchen, bathroom and more!

The team discovers a dog that has been abandoned in a nearby playground in searing heat. And, Lizzy makes an emergency trip to save a dog hit by a car.

A breast cancer survivor tries to move on with her life, but her vicious cat scares off budding suitors. Plus, Feline glutton Gus is an unhealthy eater.

All giant pandas belong to China regardless of where they are born. Follow Mei Sheng, a giant panda born in San Diego, as he goes to Wolong - the natural homeland he's never seen.

An adventurous puppy falls off a trampoline, can Dr. Jeff and Petra mend its broken leg? Meanwhile, Susan takes care of a litter of kittens and their mum.

A dangerous request from the Smith family in a Missouri flood zone forces the Raneys to build a dam and plan an entire cabin move.

Paul de Gelder and James Glancy bail out of an aircraft at 3500-ft to experience what it's like to crash land into some of the world's most remote and shark-infested waters.

Billy falls seriously ill and is forced to seek medical help. Meanwhile, the kids are left to fend for themselves and build a large raft to help move lumber.

Two pioneers in electric power both aim to develop technologies that reduce carbon emissions - both using electric motors and batteries in aviation and speedboats.

A mission becomes personal when Miami's animal cruelty investigators find two adopted dogs wandering the city streets in need of help.