Where do dogs in all their amazing diversity come from? Tradition says that thousands of years ago someone tamed a wolf pup, thus creating the first of our best friends. But many scientists disagree. On "Dogs and More Dogs," NOVA goes to the dogs—and to leading researchers—to find out the truth. Narrated by John Lithgow, the program ra...

A Brazilian documentary that shows the harmful effects of massive meat production in Brazil, reporting the deterioration of amazon forest and mistreatment suffered by animals in all the process of producing meat.

Meat the Truth is a high-profile documentary which forms an addendum to earlier films on climate change. Although such films have succeeded in drawing public attention to the issue of global warming, they have repeatedly ignored one of the most important causes of climate change: the intensive livestock production. Meat the Truth draws...

One Life captures unprecedented and beautiful sequences of animal behaviour guaranteed to bring you closer to nature than ever before, as well as a second disc packed full of never before seen extras including an exclusive making of featurette narrated by Daniel Craig.

Explores the challenges of converting to a vegan diet. It "follows three meat-and-cheese-loving New Yorkers who agree to adopt a vegan diet for six weeks.