Megalodon was the biggest predator ever to swim the oceans who ruled the seas for 20 million years.
(01:06)In the south, Guderian finally receives the order from Hitler to rejoin the other armies up north and proceed towards Moscow,...
(03:08)Himmler and Heydrich set up execution commandos called Einsatzgruppen that are composed of SS members, policemen and Wehrmacht...
(03:09)A family demolition team must destroy an old Vegas casino filled with massive amounts of rebar. To further complicate matters,...
(00:59)Gold Smuggling From Hong Kong To Nepal
(00:29)The theological implications of this important biblical document are explored by scholars and scientists.
(01:04)Blue holes time capsules webisode from Diving the Labyrinth series on National Geographic Channel
(03:05)Diving the Labyrinth series on National Geographic Channel
(01:14)From Warriors to Rodeo is no easy journey but practice makes perfect.
(02:59)Martin Dohrn explains the Frankencam -- the handmade apparatus used to film army ants in extraordinary ways.
(02:03)A new convert adjusts to the Hasidic lifestyle.
(02:57)Can termites repair a patient’s lung just like they repair nests?
(02:59)When American troops were marched into German death camps, all hope for the European prisoners disappeared.
(03:04)Little lion cubs test their hunting instincts.
(01:25)David didn't just commit adultery - he hid his true sexuality from his wife for years.
(02:36)In a candid interview, James Cameron gives a personal account of his journey to the bottom of the earth.
(02:15)Our brains take 1/10th of a second to interpret incoming info so are we constantly living in the past?
(02:10)Apollo explains how science and magic use illusions differently.
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