Episodes

S26 Ep1
Silence of the Bees
Silence of the Bees
This timely, Peabody Award-winning program explores the international emergency research that is underway to uncover the cause of the massive die-offs of honeybees, a potential ecological disaster. 3/13/11
Encored March 13, 2011
Premiered October 27, 2007
S25 Ep12
Dogs That Changed the World: Dogs By Design
Dogs That Changed the World: Dogs By Design
Passport
The second hour of "Dogs That Changed the World" details the explosion of the basic working dog types into the roughly 400 breeds known today; explores concerns about today’s competitive breeding and its effect on dogs’ health and well-being; and outlines dogs’ potential role in medical care for human beings.
Encored October 12, 2011
Premiered April 29, 2007
S25 Ep11
Dogs That Changed the World: The Rise of the Dog
Dogs That Changed the World: The Rise of the Dog
This film explores how the domestication of dogs might have taken place, including the theory of biologist Raymond Coppinger that it was the animals themselves — and human trash — that inspired the transformation. The genetic analysis of Peter Savolainen of the Royal Institute of Technology in Sweden has placed the origins of domesticated dogs — and those of the first dog — in East Asia.
Encored October 22, 2011
Premiered April 22, 2007
Video expires September 30, 2019
S25 Ep10
Voyage of the Lonely Turtle
Voyage of the Lonely Turtle
Spinners dolphins congregate in superpods of hundreds, coordinating a hunt – and spinning! Scientists do not know for certain why they spin.
Encored April 14, 2007
Premiered April 15, 2007
S25 Ep7
Raptor Force
Raptor Force
Take flight on an exhilarating ride with elite winged predators. Humans have had a unique relationship with raptors, nature’s aerial killing machines, for more than four thousand years, first through the ancient sport of falconry, and, more recently, as scientists and engineers have turned to these mighty birds for inspiration for the latest in aircraft design.
Premiered February 18, 2007