The following NOVA programs are available to watch online, divided conveniently into chapters and closed captioned for deaf and hard-of-hearing viewers. If you experience difficulty viewing, it may be due to high
demand. We regret this, and suggest you try back at another time. Note that most NOVA programs are not available for downloading due to rights restrictions.
 | Animal Hospital (Feb. 1998)
High-tech health care comes to veterinary medicine—radiology to surgery, intensive care to sports medicine. Watch now (52 mins.) |
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 | Ape Genius (Feb. 2008)
Experts zero in on what separates humans from our closest living relatives. Watch now (49 mins.) |
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 | Bird Brains (July 2008)
Clues to the origins of human language are turning up in the brains of birds. Watch now (13 mins.) |
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 | Booming Sands (Jan. 2005)
Scientists look into a generations-old conundrum: how and why do certain sand dunes produce mysterious noises? Watch now (7 mins.) |
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 | Capturing Carbon (July 2008)
An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere. Watch now (12 mins.) |
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 | Emergence (July 2007)
How does the "intelligence" of an ant colony or the stock market arise out of the simple actions of its members? Watch now (12 mins.) |
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 | Fastest Glacier (July 2005)
A glacier moving way too fast reveals how unpredictable the effects of global warming can be. Watch now (7 mins.) |
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 | First Primates (July 2008)
Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice. Watch now (13 mins.) |
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 | Fish Surgery (Oct. 2005)
Veterinary medicine has caught up with Americans' love for their number one choice of pet: the fish. Watch now (6 mins.) |
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 | The Four-Winged Dinosaur (Feb. 2008)
Surprising fossils from northeastern China spur a debate over how birds evolved. Watch now (50 mins.) |
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 | Frozen Frogs (Apr. 2005)
The common wood frog freezes solid every winter and then, come spring, defrosts and mates. Watch now (4 mins.) |
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 | Hurricane Katrina (Oct. 2005)
Scientists' warnings proved sadly prescient about New Orleans' risk from hurricanes. Watch now (4 mins.) |
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 | Hurricanes (Jan. 2005)
Predicting a hurricane's intensity is notoriously difficult, but new tools may make it easier. Watch now (12 mins.) |
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 | Ivory-Billed Woodpecker (Jan. 2006)
An enchanting bird believed extinct mysteriously reappears...maybe. Watch now (7 mins.) |
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 | Judgment Day: Intelligent Design on Trial (Nov. 2007)
Science is 'Exhibit A' in a landmark trial on the teaching of evolution. Watch now (108 mins.) |
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 | Leeches (July 2008)
A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds. Watch now (11 mins.) |
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 | Lightning (Oct. 2005)
Experts still aren't sure what triggers it, but they suspect cosmic rays from outer space. Watch now (9 mins.) |
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 | Lord of the Ants (May 2008)
Naturalist E.O. Wilson's fascination with little creatures has led him to some very big ideas. Watch now (50 mins.) |
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 | Mirror Neurons (Jan. 2005)
A recently discovered system in the brain may help explain why we humans can get so worked up watching other people. Watch now (14 mins.) |
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 | Profile: Bonnie Bassler (Jan. 2007)
Her insight into how bacteria "talk" has launched a revolution in biological and medical research. Watch now (13 mins.) |
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 | Profile: Erich Jarvis (Oct. 2005)
The work of neuroscientist Erich Jarvis demonstrates the power of open-mindedness in the lab. Watch now (12 mins.) |
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 | Profile: Edith Widder (July 2008)
Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures. Watch now (9 mins.) |
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 | The Search for ET (July 2008)
Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there? Watch now (11 mins.) |
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 | Stem Cells (Apr. 2005)
A new technique for creating stem cells may ease ethical concerns. Watch now (8 mins.) |
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 | Stem Cells Breakthrough (July 2008)
Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos. Watch now (13 mins.) |
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 | Stronger Hurricanes (Jan. 2006)
Is global warming making hurricanes more intense? Watch now (6 mins.) |
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 | T. Rex (Apr. 2005)
An astonishing adolescent growth spurt accounts for T. rex's enormous size. Watch now (8 mins.) |
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 | T. Rex Blood? (July 2007)
Preserved soft tissue, including possible blood vessels and red blood cells, are turning up in dinosaur fossils. Watch now (13 mins.) |
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