The absence of sharks is a lead that something may be wrong at Flint Island.
(03:03)Tanya is taking us to visit Yellow Stone Park. She says we must drive for over two hours along a road that goes high into the...
(02:33)The evolution of the machine gun from its use in WWI to the GAU-8 Avenger, one of the deadliest machine guns in the world.
(00:34)Track the flight of a Tomahawk cruise missile and examine every key stage of its journey - launch, flight and target.
(00:38)The theological implications of this important biblical document are explored by scholars and scientists.
(01:04)The island is so small it has never had human habitation, is probably the most pristine island.
(03:00)Dr Mike Leahy can't stress enough, the importance of washing fruit and vegetables if you want to avoid unsavoury diseases such...
(03:10)FOB agents work 24/7 in one of the most active and remote areas for drug traffic and illegal immigrants.
(02:39)Undercover agents work to shut down a house suspected of harbouring illegal immigrants.
(03:01)As scientists try to forecast the future consequences of the big melt, internationally acclaimed photographer James Balog is...
(01:14)A headless body is unearthed. Is there a connection between this headless body and these desert lines?
(02:50)The sinking of the Edmund Fitzgerald.
(01:10)The Dive Detectives unlock the secrets of a "ghost ship".
(00:30)Raised on plastic spoons and dope by his gang-banging brother, 28 years old Chronic was born to be a crack dealer.
(02:59)After mating in the forest, red crab females descend down tall cliffs into the sea where they release their eggs.
(02:58)"The fear is always there, especially at night when you can't see what's coming at you."
(03:04)When you fly in the middle of the night it's like alerting your enemy, "hey guys, we're here!"
(03:03)NASA has been exploring the surface of Mars with two robots to discover its secrets.
(03:14)Mars may appear to have an inhospitable climate, evidence suggests that in the past things were different.
(03:13)