Bears are an ultimate icon of the wild, regarded as among the most successful wild animals on the planet. Three of the world's eight bear species -- brown bears, black bears, and polar bears -- can be found in Alaska, one of North...
Preservationist, naturalist, author, explorer, activist, scientist, farmer, John Muir (1838 - 1914) was all these things and more. Nearly a century after his death, the Scottish American is remembered and revered as the father of the environmental mo...
On February 7, 2009, drought and a record-breaking heat wave in the Australian state of Victoria generated a firestorm of epic proportions. High winds turned 400 bushfires into one raging fire front that trapped animals and people. One hu...
NOVA examines the latest technology in space exploration in a two-part special Hunting the Edge of Space. First, The Mystery of the Milky Way, looks the telescope and how it has fundamentally changed our understanding of the universe. What began as a...
Joy Adamson's book, Born Free, first published in 1960, tells the dramatic story of becoming the surrogate parent of an orphaned lion cub named Elsa and her eventual release back into the wild. Adamson's book sold millions of copies aroun...
In the early 1990's, Saddam Hussein committed one of the greatest ecocides of the 20th Century. He drained the great Mesopotamian Marshes, the richest wetland habitat in the Middle East. Believed by many religious scholars to be the origi...
Nearly all of Cuba's untouched tropical forests and coastal shores have been preserved for half a century by a communist government with no means of development. Today Cuba's pristine tropical environment faces impending threats. New economic p...
It is the epic story of one of the most amazing evolutionary journeys ever taken by a species. Thousands of years ago, as humans began to settle in villages, the wolf emerged from the wild and made the startling leap to "man's best friend." Once dome...
Three-and-a-half billion years of evolution has produced an extraordinary number of species, but one stands out from all the others. Only one can write, think in symbols, recombine those symbols into infinite meanings, invent a technology to dissemin...
Years of evolution have created the earth's dirt. It's the stuff that recycles our water, gives us food and provides the foundation for shelter. Recent discoveries show that the vitality of the Earth's dirt is endangered as a result of destruct...
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