National Geographic Canada HD

Taking a look at the excavations in the La Brea Tar Pits in Los Angeles and showcasing how the pits can help unravel the mystery of how the saber-toothed tiger hunted its prey.

New discoveries reveal the secrets of Roman gladiators' enduring appeal.

Archaeologists dig in Pompeii to uncover the dark side of the idyllic Roman city by finding the room of an enslaved person.

Archaeologists reveal the discovery of a Nero megastructure.

Discoveries uncover how the Romans ruled the seas for four centuries.

Archaeologists excavate a buried city in Jordan, dive a sunken temple in Italy and explore Petra to shed new light on how Rome conquered the east.

Archaeologists excavate the vast frontier of the Roman Empire, investigating the battle to keep it safe.

Discoveries uncover how the Romans ruled the seas for four centuries.

Archaeologists excavate a buried city in Jordan, dive a sunken temple in Italy and explore Petra to shed new light on how Rome conquered the east.

Archaeologists excavate the vast frontier of the Roman Empire, investigating the battle to keep it safe.

A look into how the T. rex became king of the dinosaurs.

A look into how prehistoric land mammals evolved into top ocean predators.

How the giant ice age mammoth became extinct.

Taking a look at the excavations in the La Brea Tar Pits in Los Angeles and showcasing how the pits can help unravel the mystery of how the saber-toothed tiger hunted its prey.

Lisa and Todd take on one of the toughest runs of the season; Darrell steals business from his former boss; Alex's trucking season is threatened by a crash.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

A sloshed snowboarder causes trouble at the airport; a pair of packages add up to a deadly surprise.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

Dr. Oakley tends to an ill reindeer and performs surgery on a canine burn victim.

In the field, Dr. Oakley discovers a problem that's infesting reindeer and gets an unpleasant surprise from a famous porcupine.

Dr. Oakley explores what ails a sick German shepherd and treats a prickly peacock.

Dr. Oakley investigates what's ailing reindeer at the Alaska Wildlife Conservation Center.

Dr. Oakley and her daughters, Maya, Sierra, and Willow, travel to the AWCC, where they attempt to bond with a lone wolf.

Drs. Oakley and Doyle operate on a horse with a critical leg infection.

Dr. Oakley treats walking-and-breathing issues for a horse, tries to save a fox in peril, and performs surgery on a puppy.

Dr. Oakley helps a horse with a strange lump and deals with a bull that's losing weight.

Dr. Oakley visits Australia to help the animals affected by the devastating wildfires.

Dr. Oakley sees a wolverine with a growing lump on its side; a shocking discovery during a reindeer castration.

Dr Oakley helps some musk oxen; he also faces a puppy emergency and treats a wolf in danger of losing an eye.

Dr. Oakley treats a dangerously thin reindeer with a bellyache and suspects that the animal might have eaten something bad.

Dr. Oakley helps a horse with a strange lump and deals with a bull that's losing weight.

Dr Oakley helps some musk oxen; he also faces a puppy emergency and treats a wolf in danger of losing an eye.

Dr. Oakley treats a dangerously thin reindeer with a bellyache and suspects that the animal might have eaten something bad.

Dr. Oakley investigates what's ailing reindeer at the Alaska Wildlife Conservation Center.

Dr. Oakley and her daughters, Maya, Sierra, and Willow, travel to the AWCC, where they attempt to bond with a lone wolf.

Drs. Oakley and Doyle operate on a horse with a critical leg infection.

Dr. Oakley treats walking-and-breathing issues for a horse, tries to save a fox in peril, and performs surgery on a puppy.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a road block.

A recurring mine marker points the team east to neighboring Harrison Lake as leads and legend line up; clues found in a 1950s article by an investigative reporter place a lost Spanish gold mine directly on Slumach's path.

A bad-tempered drill worker returning home from Japan goes one step too far with officers; a Californian woman hides something in her child's stroller.

A recurring mine marker points the team east to neighboring Harrison Lake as leads and legend line up; clues found in a 1950s article by an investigative reporter place a lost Spanish gold mine directly on Slumach's path.

Devastating flash floods threaten Dawson City.

The most-famous witch trials of them all: Salem, Massachusetts.

The brutal Trier witch trials and the origins of witch-hunting.

The true story of the first major witch trials in Scotland.

Witch-hunters torture so-called witches during England's Civil War.

Swedish children tell stories of a place witches took them to.

A terrifying tale of demonic possession in a witch trial in Ireland.

Whistleblower testimony reignites a decades-long fight for transparency.

Commercial pilots come forward about their encounters with UFOs.

Scientists unveil cutting-edge technology helping in the search for UFOs.

People talk about close encounters they've had with UFO phenomena.

As the miners enter their second month underground, rescuers face the challenge of bringing them back alive amidst obstacles.

No longer waiting for the government to share data, citizen scientists and private groups amplify the search for answers.

People talk about close encounters they've had with UFO phenomena.

As the miners enter their second month underground, rescuers face the challenge of bringing them back alive amidst obstacles.

No longer waiting for the government to share data, citizen scientists and private groups amplify the search for answers.

The true story of the first major witch trials in Scotland.

Witch-hunters torture so-called witches during England's Civil War.

Swedish children tell stories of a place witches took them to.

A terrifying tale of demonic possession in a witch trial in Ireland.

Honesty is the best policy, even for ex-cons; A student gets the dish on declaring items properly.

Airport officers let the khat out of the bag; A repeat offender must prove he's learned his lesson.

A traveler has suitcases full of surprises; A Canadian couple returns home with a man-eating beast; two Americans tow their friend's boat to Alaska.

The dogs are brought in to assist officers; A traveler goes gaga at Vancouver International Airport.

Gold, the shiny precious metal that has been cherished through all recorded time, is vital to the modern world; if gold was suddenly stripped away, the technological and cultural world would be left reeling.

Nika and Chris face a repair they can't afford; Guillaume has trouble while Ken is gone; Karl asks his family for help; Bernie gets a surprise.

Conservation Officer Logan has a close call while investigating a case of poaching; an aggressive grizzly bear ransacks a remote trapper's cabin.

Honesty is the best policy, even for ex-cons; A student gets the dish on declaring items properly.

Airport officers let the khat out of the bag; A repeat offender must prove he's learned his lesson.

A traveler has suitcases full of surprises; A Canadian couple returns home with a man-eating beast; two Americans tow their friend's boat to Alaska.

The dogs are brought in to assist officers; A traveler goes gaga at Vancouver International Airport.

CBP Dulles finds outbound drugs; Border Patrol tracks human smugglers.

HSI chases a cargo truck to find illegal narcotics like cocaine hidden within frozen avocado paste, uncovering a sophisticated smuggling attempt; CBP recovers stolen cars.

CBP in McAllen faces a possible bomb; HSI arrests fentanyl traffickers.

A 48-hour sting leads HSI to a stash house; CBP finds drugs in gas tanks.

HSI tails vehicle transporting meth; CBP seizes looted Ukrainian relics.

Rookie CBP officers find multiple drugs; HSI runs a buy-bust operation.

Border Patrol chases suspect fleeing arrest; CBP stops weed leaving the U.S.

HSI finds overcrowded human stash houses; CBP discovers meth in machinery.

Agents intercept suspect boats, screen mail and stop pests from Korea.

The villagers of Port Protection are back to paving with good intentions.

HSI finds overcrowded human stash houses; CBP discovers meth in machinery.

Agents intercept suspect boats, screen mail and stop pests from Korea.