For Centuries. wolves have been characterized as bloodthirsty beasts and the bane of helpless livestock. determined to overcome this misconception, filmakers Jamie and Jim Dutcher-creators of the Emmy Award Winning Wolves at Our Door, spean six years in a tented camp in the wilderness of Idaho-living with a pack of wolves! (www.youtube.com)

Musician Frank Zappa was born on Dec. 21, 1940, in Baltimore, Maryland. His work was intentionally shocking and politically charged. In the early days, he performed as the Mothers of Invention and released his first album in 1966 called Freak Out! He made more than 60 albums during his 30-year career. Two years after his death, he was inducted into the Rock and Roll Hall of Fame in 1995. (www.youtube.com)

PBS Nova documentary on the tornado outbreak. (www.youtube.com)

It helps to understand more about our body and what we can do about to make it healthier. (www.youtube.com)

Broadcast (2006) Nature invented a whole range of hi-tec materials long before we invented ceramics and plastics. And not only are they often better, but nature has also invented ingenious ways of building with them. In this programme we travel inside a giant sequoia to find out how nature has built the largest living thing ever, and how that might help us make better bullet proof vests. In the forests of Central America, the breath taking, irridescence of a morpho butterfly in flight is all the more amazing when slowed down over a hundred times.

Broadcast (2008) An ancient legend on the Indonesian island of Flores tells of an elflike creature similar to the fictional hobbit of novels and film. But a controversial 2003 archeological find not only suggests that there could be some truth behind the legend but promises to rewrite a key chapter in the human evolutionary story. This program investigates the discovery, analysis, and startling implications of the hobbit of Flores. (www.youtube.com)

Anticipation is building in the run-up to presentations of the best-yet evidence for - or against - the existence of the Higgs boson.

The famed particle is a missing link in current theories of physics, used to explain how things gains their mass.

Rumours have been swirling about the findings for weeks, ahead of the announcement on Tuesday afternoon.

It is likely to yield only tantalising hints, as the teams do not have enough data to claim a formal discovery. (www.youtube.com)

Around the globe, unique and fascinating species face extinction from hunting and habitat destruction, which affects vulnerable animals in every kind of environment. Biologists, conservationists, wildlife preservation centers and zoological parks work to breed and shelter rare and critically endangered animals when and where they can, but many species are down to the last few individuals and face an increasingly uncertain future. For some, however, the future is all too clear. Lonesome George, a Pinta Island tortoise from the Galapagos Islands, is the very last of his kind.

Broadcast 2009. Black Holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question - what was there before the Big Bang? The trouble is that researching them is next to impossible. Black holes are by definition invisible and there's no scientific theory able to explain them.

In the animal kingdom, there's no shortage of bizarre behaviour. This episode burrows high and low ground to unearth some of the creepiest creatures who crawl on this planet! They range from those that fend off prey by squirting blood from their eyeballs, to others who eat their partner's right after mating, to others who raise their offspring in the carcasses of dead animals. And that's just a sampling of over 20 species whose antics you can hardly believe...or turn away from. (www.youtube.com)

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