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Five million Americans suffer from Alzheimer's disease and dementia—many of them alone in nursing homes. A man with a simple idea discovers...

14-part special in which botanist Francis Hallé explains forest science and processes. Part of the "Once Upon a Forest" physical release.

Stay inside all the time? Never take your shoes off? Feel fatigued? You could have Natural Deficit Disorder. Learn how the earth can help neutralize...

It's time to harvest the wheat on the farm so Farmer Tom shows Tractor Ted and Midge the dog the combine harvester that he needs for the job. It's so...

Morgan Spurlock subjects himself to a diet based only on McDonald's fast food three times a day for thirty days without exercising to try to prove...

It is one of the hottest questions in nutrition, and probably filling your Facebook feed full of articles telling you what you should be eating....

Tractor Ted shows us massive farm machines at work in the fields. There are tractors with huge wheels and caterpillar tracks as big as a car. There...

Surveys the role of chemistry in American life and the central role of the people, products, and plants of Monsanto.

This film is a treasure. It's one of the best examples of the theory and practice of the art of camouflaging military targets from air observation...

Weight loss expert Vinnie Tortorich and award-winning filmmaker Peter Pardini want you to join their team to make a hard-hitting documentary film...

At the height of the COVID-19 crisis, National Geographic Explorer, Chris Golden, and ABC News foreign correspondent, James Longman, embark on an...

Lose up to 7lbs in 7 days with Jason Vale's ultra-fast 1-week super juice cleanse. The man who helped Jordan to get her post-baby body back has...