National Geographic Wild HD

Perhaps the smartest penguins live among deserts, tropics and humankind.

In the Southern Ocean, courageous penguins break the rules to survive.

Discover the hidden story of OmegaXL with John Walsh. He dives deep into the groundbreaking supplement that promises hope and relief for millions battling joint pain and inflammation.

See how a drug-free patch is helping people find relief-without medication.

B. Johnson shares the Nuwave Forever Air Purifier with NeverReplace Filters; get the smart Wi-Fi-enabled air purifier that helps achieve zero airborne pollutants without any additional replacement filters.

Meet the new Shark PowerDetect Upright Vacuum with features like DuoClean Detect Technology, self-cleaning brush roll and odor neutralizing and you will be cleaning faster, smarter and better!

2026 will be one of the most historic years ever in U.S. coinage; join your host Mike Mezack to learn about the incredible U.S. Quarter program and get a chance at an exclusive P&D Roll!

Audien Hearing is a leader in over-the-counter hearing aids, committed to making high-quality hearing accessible to all. Discover how advanced, affordable solutions are helping more people experience better hearing every day.

Back Pain? Hip? Sleep well thanks to this cooling topper!

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Alaskans face tremendous obstacles with the spring breakup in full swing.

As the rivers melt, Alaskans try to stay ahead of the changing landscape.

Alaskans race to gather resources while battling challenges from unpredictable weather.

As the summer begins to fade, Alaskans must take advantage of the long days to prepare for the long freeze that lies ahead.

Alaskans must ensure they are prepared to withstand the extreme cold that lies ahead.

As the thaw draws to a close, Alaskans maximize their final days of sunlight in the Arctic.

To prepare for a dark and cold winter, Alaskans must harvest necessary resources in unfamiliar territories.

Alaskans race to secure resources and ready their camps for the coming dark winter.

Alaskans struggle to survive the brief, cold and dark days as winter overtakes the land.

In the midst of dark winter, Alaskans burn the midnight oil to complete necessary tasks.

Alaskans scurry to find precious resources in a constantly changing winter landscape.

At the apex of winter, a lack of snowfall in the Arctic makes basic tasks more difficult.

Alaskans learn new survival skills as winter loses its grip on the Arctic landscape.

In the final days of winter, Alaskans use their time to prepare for what lies ahead.

To survive a year in the Arctic, Alaskans must adapt to the ever-changing seasons.

As the ice and snow melt across the Arctic, Alaskans take advantage of the warm season.

Daylight for 24-hours in the spring allows Alaskans to work nonstop to prepare for winter.

Los Angeles is shocked by four shark attacks in four months.

Three alarming shark attacks occur in the Bahamas in just thirty-nine days.

A small Alabama beach town emerges as an unlikely shark attack hot spot.

Discover the hidden story of OmegaXL with John Walsh. He dives deep into the groundbreaking supplement that promises hope and relief for millions battling joint pain and inflammation.

Paid programming.

Paid programming.

See how a drug-free patch is helping people find relief-without medication.

Trusted brand Jacuzzi Bath Remodel and interior designer Christina Hall share their secrets on how you can easily and affordably transform your bathroom into a gorgeous custom, safe, stylish space in 1 day! Call for a FREE quote & installation.

Back Pain? Hip? Sleep well thanks to this cooling topper!

2026 will be one of the most historic years ever in U.S. coinage; join your host Mike Mezack to learn about the incredible U.S. Quarter program and get a chance at an exclusive P&D Roll!

Rare instances of predation on sharks by seals, crocodiles, octopi, bobcats and birds.

Sharks go head-to-head with surfers, scientists, sea lions and even whales.

Researchers investigate if orcas are hunting great whites in New Zealand.

Oceanic titans clash in the remote crystal-blue battlefields of Ascension Island, where the yellowfin tuna are often faster, fitter and bigger than the sharks, reaching well over 250 pounds.

A rare event between top ocean predators was captured on video in Florida: bull sharks attacking a great hammerhead. Dr. Heithaus and a team of shark experts launch an investigation pinning one against the other.

Marine biologists investigate why sharks attack boats.

A team of experts travels to Shark Bay, Australia, to unlock the secrets of shark and dolphin combat; cutting-edge technology provides a window into this seldom-seen conflict.

Up close with some of the largest great white and tiger sharks ever filmed.

At Pol Veterinary Services, the vets herd cats.

After five years at Pol Veterinary Services, the doctors face Dr. Emily's departure.

The docs have their hands full with 4-H clients preparing for the Isabella County Fair.

It's spring in Michigan, and the baby farm animals are keeping the Pol team on its toes.

Dr. Pol rushes to rescue a horse that has a life-threatening infection, while Dr. Brenda works to get a sheep ready for the Midland County Fair.

Dr. Pol adds a Great Dane puppy to the Pol Pack.

Between a baby bonanza and barnyard emergencies, it's a nonstop week for the docs at PVS.

A wild chase ensues when a Pol emu hops out of its enclosure and makes a run for it.

At Pol Veterinary Services, the doctors treat an emu with a fractured leg.

Up close with some of the largest great white and tiger sharks ever filmed.