National Geographi

What at first appears to be a myriad of angry alligators floating in the murky waters of the Everglades, waiting to pounce on unsuspecting tourists, is in fact a delicate ecosystem vital to the environment of South Florida. Brought to video by National Geographic, this video is a swamp boat ride through the salty mangrove and saw-grass prairies to a secret place of survival. Between the sediments of silt and sand, wonderful creatures reside, such as the West Indian Manatee, the American White Pelican, the Roseate Spoonbill, and the rarest and most elusive native animal of the region -- the Florida Panther.

Forensic investigators use modern science to solve the mystery of the missing Romanov family.

In this special documentary, we follow Steve McCurry on his quest of shooting the last roll of Kodak Kodachrome film ever made. On the 22th of June 2009, after 74 years of manufacturing the world's best-selling color film, Kodak stopped producing Kodachrome. Steve McCurry had the opportunity to get the last Kodachrome film cartridge produced by Kodak factories in 2010. He then left for India and went to Bombay and Rajasthan, then to Istanbul and London before returning to New York to shoot the last images with this roll.

Visit the savage jungles of Brazil, Panama and Belize, where biologist and conservationist Alan Rabinowitz journeys to find and protect the elusive jaguar from its most vicious enemy -- the encroachment of humankind. Narrated by award-winning actress Glenn Close, the extraordinary footage of this sleek and stealthy feline predator and its vanishing habitat is some of the most compelling ever captured on film.

If you haven't heard of Plant 42, you are not alone. Go inside America's “black world” of off-the-record projects developed in secret. Host Jake Ward, editor of Popular Science, explores the little-known projects still being built in America that are so confidential, some are said not to exist. His mission: to shine a light on the covert technology hidden all around us.