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Shark Week: Shark Tagging Explained (2:48)

Researchers tag sharks with satellite transmitters for tracking.

Computer Tour (3:24)

Have you ever wondered what is on the inside of your computer? Watch this video from HowStuffWorks as we take you on a tour of your computer.

Why? Tell Me Why! Alaska Oil (1:30)

After spending a week in Alaska, Discovery News' Kasey-Dee Gardner wanted to find out why the state is so abundant in that resource.

Up Close and Dangerous: Aggression versus Instinct (1:05)

Learn the difference between a shark attack and the technique of 'mouthing,' which sharks use to explore new objects in the underwater environment.

Green Rally on Capitol Hill (2:40)

Witness the largest green lobbying day in the history of Washington DC.

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HowStuffWorks Train Commercial (0:32)

HowStuffWorks.com goes prime time with our first ever television advertising campaign. Check out this great video of Tokyo commuters squeezing in for the daily grind and Keep Asking great questions.

HowStuffWorks SCUBA Cat Commercial (0:32)

HowStuffWorks.com goes prime time with our first ever television advertising campaign. Check out this video of Hawkeye the scuba diving cat taking a dip and Keep Asking great questions.