Colosseum: Roman Death Trap Preview
Season 42
Episode 6
About the Episode
1500 years ago, how did the Romans engineer bloody spectacles and reenact sea battles?
Aired:
| Expires: | Runtime: 30s
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Extras
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Great Mammoth Mystery Preview
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.0:28 -
Did Some Dinosaurs Breed in the Arctic?
70 million years ago, several species of dinosaur nested in the Arctic.3:00 -
Fossilized Dung Reveals Clues About Dinosaurs' Diet
Where are you going to get protein if you're an herbivore?3:06 -
Can South Carolina's Salt Marshes Be Saved?
Many seafood dishes depend on an ecosystem that's easy to overlook: The salt marsh.8:27 -
Japan's Killer Quake - Preview
An eyewitness account and investigation of the earthquake, tsunami, and nuclear crisis.0:30 -
Hunt for the Supertwister - Preview
Airs Wednesday, May 9, 2012 at 10:00 p.m. ET/PT. Check your local listings.0:30 -
Crash of Flight 447 - Preview
Airs Wednesday, June 13, 2012 at 9:00 p.m. ET/PT. Check your local listings.0:30 -
How the Morpho Butterfly Gets its Iridescent Color
How does nature produce a color that looks so unnatural?2:22 -
Stopping the Millennium Tower from Sinking Further
How can skyscrapers be built safely without a foundation on bedrock?3:28 -
When Earthquake Damage is Invisible
Factors such as inadequate construction materials can make tall buildings vulnerable.2:51
