This documentary-reality series takes an unflinchingly honest look at animal hoarding and the people and pets affected by this disturbing condition.
Using real footage and graphical representations, this series offers a literal window into the center of Earth, where likely natural disasters churn.
This interactive series uses games, illusions and experiments to illustrate how our brains manufacture our reality and often play tricks on us.
A decade after 'An Inconvenient Truth,' Al Gore continues his tireless drive to influence climate policy and show that the planet still has a chance.
To determine whether we're alone in the universe, astrobiologists look to Jupiter, Mars and, closer to home, extreme environments on Earth.
Follow engineering teams as they build the most dangerous, complex and amazing structures in modern history, using the latest scientific techniques.
Leonardo DiCaprio crisscrosses the globe to investigate the consequences of man-made globe warming and the measures being taken to reverse it.
Cinematographers visit the remote forests and mountains of China in hopes of capturing footage of pandas, monkeys, red-crowned cranes and more.
Two very different men struggle to save pink dolphins in the Amazon. But their well-intentioned activism has murky consequences.
This documentary explores the tensions between the lucrative big-game hunting business and wildlife conservation from a variety of perspectives.
Narrated by Robert Redford, this documentary tours the awe-inspiring landscapes, historic sites and untamed wilderness of America's great parks.
This fact-based account delves into humankind's efforts to gather signals from possible intelligent beings beyond the solar system.
Experience life through the eyes of a giant panda and her young cub, a golden monkey, and a mother snow leopard as they traverse the wilds of China.
This documentary chronicles NASA's 1977 launch of twin space probes, sent to capture images of remote planets and bear messages from Earth.
Witness some of the most riveting showdowns in the animal kingdom as cameras capture leopards, polar bears and other predators targeting their prey.
Whoever came up with the term "bird brain" never met these feathered thinkers, who use their claws and beaks to solve puzzles, make tools and more.
According to the research of two food scientists, the popularity of processed foods has led to epidemic rates of obesity, diabetes and other diseases.
In this sequel to the Emmy-winning "Planet Earth" series, viewers are treated to rich and intimate views of the natural diversity of our planet.
An international group of filmmakers sets out on a mission to get up close and personal with a family of elusive snow leopards.
This series explores wild animals' continual struggle to survive and the varied strategies used by creatures both big and small to endure and thrive.
Witness the warm bond that develops between conservationist Valentin Gruener and the lion cub he rescues from a Botswana game farm and raises by hand.
Experience an up-close look at the controversial passion and resulting infamy of big-game hunters Rebecca Francis and Jacine Jadresko.
Materials scientist Mark Miodownik takes us into the world of everyday objects that make our lives more comfortable than those of our ancestors.
Footage of the most dramatic moments from World War II is restored in color and high definition for this historical documentary series.
Divers, scientists and photographers around the world mount an epic underwater campaign to document the disappearance of coral reefs.
A Las Vegas doctor's controversial online contest sees anxious entrants vie for free in vitro fertilization, a procedure rarely covered by insurance.
Farmers, scientists and nutritionists weigh in on just how gluten intolerance came about and find modern processes may be the culprit.
Self-professed teenage "space nerds" at Space Camp chase their dreams of traveling to Mars, while experts reflect on NASA's history and future.
After near extinction 50 years ago, humpback whales are thriving. Their recovery is captured in this documentary filmed in Alaska, Hawaii and Tonga.
When he discovers the world's oceans brimming with plastic waste, a documentary filmmaker investigates the pollution's environmental impacts.
Capturing the long-planned meeting of primatologist Jane Goodall and whale conservationist Roger Payne, this film celebrates both scientists' careers.
Casting a light on the mistreatment of sea mammals, this documentary follows the plight of 18 Beluga whales kept in captivity for years.
Scientists and animal keepers fight to save an orphaned baby elephant at a rescue camp in Botswana while struggling to defend its entire species.
Using advanced technology, a team of field experts joins hosts Chris Packham and Martha Kearney as they explore the complex world of honeybees.
Fearless wildlife expert Brady Barr takes viewers around the globe to seek out some of the most exotic and dangerous creatures found in nature.
See the animal kingdom's greatest predators in action and learn how they develop their speed, strength and cunning into killer skills.