National Geographic WILD HD Saturday

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The doctors carefully treat a giant Burmese python, perform a caesarean section on a dog, and try to prevent parasites from decimating a herd of goats

The vets are flummoxed by a seemingly pregnant goat, deflate a turkey whose head is full of air, and host a Vet for a Day event for kids

Some of the deadliest patients at the zoo, including a 200-pound python with killer back pain, a girl-shy male lion and a bear with a gnarly cough

An abscessed tooth turns nasty for an aging sheep, Lulu the giraffe gives birth, and a dangerously skinny skink confounds the vet staff

While the Pols prepare for their Friesian horse to give birth, the vets are kept on their toes by an unlikely vasectomy and a duck with a dry eyeball

Part one of two. The mysterious world of orcas. Recent attacks on boats near Gibraltar raise questions of whether the creatures are threatening humans or just playing

Part two of two. Marine biologist Florian Graner delves into orcas' ability to pass down knowledge through generations, and the diverse orca populations in the Salish Sea

From the bizarre anatomy of the platypus to the Tasmanian devil, Australia's creatures rely on incredible adaptations to survive in diverse habitats

High stakes battles between predator and prey in a diverse range of bountiful habitats across Australia's coastline

Europe's most important and fascinating habitats and their most remarkable wild inhabitants, from leopards in the Caucasus to blue whales in the Atlantic

Europe's mountains come in a variety of shapes and sizes, bringing a range of challenges to the extraordinary animals that inhabit them

Dr Ben Schroederoffers advice to the owner of a cat who has been suffering from severe tremors brought on by hyperthyroidism

Steven Spielberg shares his memories of the classic thriller. With contributions from film-makers including Jordan Peele, James Cameron and Guillermo del Toro

Ryan Reynolds reveals a guide to romance and reproduction, underdog style, forgetting the birds and the bees and rewriting the rule book to finding the one

Ryan Reynolds shines a spotlight on the most ingenious con artists in the animal kingdom, from blatant thievery to camouflage and outright subterfuge

A touching look at surprising animal friendships, including a dog that befriends a cheetah cub and another that cannot get enough of its flippered friends

At the Alaska Raptor Center, a bald eagle may get its shot at freedom after four years of rehabilitation