Discovery HD

How do hamsters stuff so much into their cheeks? Why do camels have humps? Plus, why are pigeon wings so noisy? Experts answer these questions.

How does your dog know when you're sick? Which animals make the most amazing nest? Why do octopuses have blue blood? Experts have the answers.

How do dogs tell time? What is the secret behind the kangaroo's hop? Plus, why do vultures fly in circles? Experts answer these questions.

How do cats always land on their feet? How do hummingbirds fly when it is raining? Plus, does a subterranean mammal on the secret to longevity.

Why are cows always chewing? Do rhinos have a sensitive side and what's the loudest animal on earth? Plus, why do rattlesnakes release their prey.

Why do dogs bury bones? Can elephants detect bombs? Why do birds sing in the morning? Plus, what makes seahorses almost indestructible.

A golden retriever is rushed into surgery after swallowing a pacifier. Then, when a stray dog is hit by a car in Oklahoma, Dr Jeff and his team step up to save him.

Dr Amy is challenged when a fat cat, Chubbs, needs immediate facial surgery. Later, the team treats a Labrador's backside that is peppered with buckshot.

When a homeless man's five-month-old puppy breaks its paw, Dr Jeff and his team put the animal's welfare ahead of everything else. Later, a dog in pain is brought in.

Parker launches a plan to net $35 million and poaches a rival's crew member. Tony cashes in early with a big score. Rick scrambles to find new ground.

Tony battles a big beaver to get at the gold, while Parker poaches more crew, doubling gold production. Rick tries to strike a deal for a new claim.

Rick balks at the terms for his new claim and makes a bold move. Parker's foreman, Tyson, battles a flooded cut and a batch of new recruits.

Parker pushes Mitch to deliver Sulphur Creek gold and records a big score. Buzz lands on an unlikely claim, and Tony's pressure tests a new foreman.

Parker battles Tony in an intense showdown for the year's top gold haul. Rick grinds at Lightning Creek and expands his operation to save his season.

Matt chases a rare Declaration of Independence copy in a jam-packed hoard and digs through a 4,000-square-foot chicken coop for vintage motorcycles.

A look at the front lines of Japan's energy overhaul, where the work is punishing, the stakes are sky high, and failure isn't an option.

Amidst an epic drought, a fisherman and a biologist face impossible water conditions in the Florida Everglades, driving one to take extreme measures.

In Trinidad, Heather and Phil investigate claims of demonic possession and Obeah curses, tracing the sinister forces locals say still grip the island.

Joined by Jack Osbourne, Heather investigates the eerie ghost town of Vulture City, where Gold Rush-era spirits hint at a far older evil.

Dwarf planets are some of the solar system's most active places, from oceans of liquid water on Pluto to vanishing volcanoes on icy Ceres.

Rise Of The Ice Giants. New research shows the migration of ice planets may have helped start life on Earth, and stopped it being destroyed. How are they so vital.

Boddie and his California racers knocked JJ and the MSO earlier in the season. Now, Boddie is back, and Memphis is looking to settle a score.

Mike discovers a true Japanese legend from the 1990s, the Nissan 300ZX twin turbo. Ant wants to boost the performance even more - but Mike has the opposite in mind.

This Horse Needs To Be Put Out. Mike decides to pay it forward and helps out a young member of the team by fixing up his 4-litre V6 2007 Mustang.

Mike and Ant welcome a zippy little 1974 Fiat X1/9 sports car to the workshop. There's hardly any rust, but big problems lurk behind the driver's seat.

Mike's found a classic 1964 Triumph TR4 in British racing green. It's rust-free, but it's been sitting for 20 years and Ant has big refurb job on his hands.

Mike and Ant welcome some history to the workshop: a 1968 International Harvester Travelall that's an ancestor of the modern SUV.

Mike gets his hands on one of the rarest BMWs ever made, a '99 Z3 M Coupe. Unfortunately for Ant, an excited Mike didn't haggle or inspect it before purchase.

The Raneys share their family's journey from rural Washington state, across southeast Alaska, before settling on a parcel of land known as 'The 40.

A Colorado family's dream is under siege by their bison. To supply the ranch with water and food, the Raneys must wrangle the dangerous herd first.

Quake And Break. Marty races back to the Adams homestead in Alaska to fix quake damage and build a bear-proof shelter in hopes of keeping their homestead dream alive.

Under threat from wild hogs, invasive bamboo, and a lack of water, a single mum in Hawaii watches her family's dream of a Big Island coffee farm fade.

Mark and Digger team up with Josh to hunt down a police informant. Tim and Tickle plot revenge on shiners who destroyed $20,000 worth of their liquor.

At Vantara, King Cheetah race freely across a stadium-sized field. And Forrest marvels as an orangutan enjoys his birthday with cake.

Mark and the guys take down a struggling church in the heart of West Virginia. As the job comes to a close, the community comes in to pull off a surprise ending.

The boys fix up a BMW 335i estate with the performance and styling of an M3. Can they get it in shape to beat a real M3 in a head-to-head drag race.

Dean aims to impress a celebrity customer with a flight over the airport. Plus, travel vlogger Simon Wilson test drives a Mercedes GT R.

A look at the front lines of Japan's energy overhaul, where the work is punishing, the stakes are sky high, and failure isn't an option.

IKON. Renegade RV builds a custom IKON, and Entegra Coach produces high-end RVs en masse. A Global Expedition Vehicle has humble beginnings.

A rodeo star gets an epic travel trailer with room for his family and four horses. And, an amazing toy hauler with a garage and tailgate patio is built.

JJ ends with the biggest event of the season: a winner-takes-all shootout. Each time someone comes back, the pot increases for a grand total of at least $75,000.

Find out how electric panels, spectacle frames, kites and toothbrushes are made, as more everyday items are put under the microscope.

Find out how footballs, electric guitar amps, marbles and aeroplane propellers are made, as more items are put under the microscope.

A chocolate factory gears up for its annual Holiday Cactus Lighting event. They task Wayde and Brett with building the ultimate festive tank.

Pete finds the perfect treehouse spot for a couple seeking a meditation space. 20-feet up, in a twisting pair of maples, the team creates an energy-infused retreat.

Parker gambles on dry-mining kit to test the gold-rich ground of Western Australia. A case of gold fever proves costly, and Parker nearly loses a team member.

Tyler leads Parker to a promising hard rock mine. They detonate high explosives to gauge if the rewards of underground mining justify the risks.

A young family builds their dream home on a wooded ridge top in Oklahoma's Ozark Mountains. They plan to convert three shipping containers into an off-grid paradise.

A couple hope to build a cabin by the rivers and mountain ranges of their home state of Wyoming. With just five weeks scheduled, can they finish it in time.

Dr. Jeff makes a shocking discovery when a rescued pup named Kova comes in with a severely injured leg. He also builds his dog Fred his very own swimming pool.

Khaleesi the golden retriever pup undergoes a life-saving procedure. And, vet tech Blaire faces heartbreak over her beloved senior dog Zula.

How do volcanoes help produce the world's best guacamole; how do they build trucks that can cross swamps; and how do they produce the world famous Fiskars scissors.

How do they make steel cables strong enough to hold up a 50,000 tonne bridge; why do modern hunters use medieval weapons; and how do shops know which clothes sizes to stock.

How do they make Tennessee whiskey the traditional Lincoln County way; how do night goggles work; and how do the Finnish relax in 160 degree saunas.

How do they grow enough vanilla to make the world's favourite ice cream flavour; how do they build anchors for huge ships; and how are 12 million lighters produced every year.

O.S. Two young couples in Alaska face disaster near the Arctic Circle. With no access to basics, the Raneys must act fast in their most extreme rescue yet.

Mike surprises Elvis with a Caterham Seven, but the size of the restoration job is bigger than expected. Can they get it race-worthy in time.

In a house packed with oddities, Matt finds megalodon teeth and Civil War bullets. After low-ball offers, Matt hustles for his biggest payday yet.

Chase Morrill splits his team to revamp two A-frame cabins in Maine's Sugarloaf Valley. With six weeks to finish both projects, the competition is on.

Heather and Phil continue their investigation of Savannah, America's most haunted city. Their quest takes them deep into the wilderness.

Mireya and Biko must navigate rapids to track a possible hunting party in WA. Bryce discovers fresh prints, and Russell creates a trap for Bigfoot.