A mining operation in Colombia opened a window into an unknown period of the Earth's history where a world with giant creatures emerged. The biggest of them all was Titanoboa, a 43-foot snake, the largest that ever lived. New discoveries suggest that Titanoboa's rule was challenged by a giant crocodilian. Experiments reveal unmatched hunting prowess. So which one was the apex predator 58 million years ago?
Extinct animals -- Colombia.
Nonfiction television programs.
Science television programs.
Video recordings for people with visual disabilities.
Video recordings for the hearing impaired.
Blink Films, production company.
Channel Four (Great Britain), production company.
Kew, Elliot, 1969- television producer, television director.
PBS Distribution (Firm), film distributor.
Public Broadcasting Service (U.S.), publisher.
Sanders, Jay O., 1953- narrator.
Thirteen Productions, production company.
WNET (Television station : New York, N.Y.), production company.