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Human cloning has been an ethical issue ever since the first sheep was cloned in 1997. Learn about the science behind human cloning.

Fallout shelters can help protect you from radiation from a nuclear attack. Learn how fallout shelters work, and how to build a fallout shelter.

Coconut oil can be used to treat many ailments and illnesses. Learn all about coconut oil and other alternative medicines at HowStuffWorks.

Do we work harder when we're paid hourly? Motivation really depends on the environment and the job. Learn if we work harder when we're paid hourly.

Is there a link between music and happiness? Find out is there is a link between music and happiness at HowStuffWorks.

Chimpanzee research dates back to the 1920s with Robert Yerkes. Learn what happens in chimpanzee research and why some countries ban the practice.

The physical effects of stress go beyond what you might think. Headaches, diarrhea, backaches -- find out more about the physical effects of stress.

Scuba Cat is a conundrum: a cat that likes water -- and scuba diving. How could a cat scuba dive? Find out more.

Both IM and email are very useful, but which is more popular and why? Check out HowStuffWorks to learn more about the popularity of IM and Email.

Some product warning labels are so obvious it's ridiculous, while others are just downright silly. Read our list of 11 stupid legal warnings.

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