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The African Clawed Frog and Early Pregnancy Tests
animals.howstuffworks.com/amphibians/african-clawed-frog.htm
Meet the African clawed frog, a fully aquatic amphibian that's part living fossil, part lab legend, and part ecological wildcard.
How Robots Work
science.howstuffworks.com/robot.htm
Robots are becoming increasingly sophisticated and lifelike. Learn about robots, the latest robot technology and how close we are to artificial intelligence.
How Twins Work
science.howstuffworks.com/life/genetic/twin.htm
Twins are unique people who are also eerily similar to each other. Do twins really have ESP? Learn how twinning happens and what types of twins are out there.
How Hypnosis Works
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/hypnosis.htm
The practice of hypnotism dates back centuries, and there are those who swear by its validity. Whether you're a skeptic or a believer, hypnosis is an interesting phenomenon. Check it out -- and let us know if you start to bark like a dog.
10 Common Problems for New Businesses
money.howstuffworks.com/10-problems-for-new-businesses.htm
Problems for new businesses range from marketing mistakes to financial miscalculation. Read our list of the 10 most common problems for new businesses.
How Caffeine Works
science.howstuffworks.com/caffeine.htm
Caffeine is one of the most commonly-used drugs -- 90% of Americans use it. Learn why caffeine is America's most popular drug and what it does to your body.
How Hair Coloring Works
science.howstuffworks.com/innovation/everyday-innovations/hair-coloring.htm
Got a few grays? Just want a new look? Well, if you are like 75 percent of women, you're part of a billion dollar industry. Learn all about hair coloring and choosing the best color for you.
How Alcoholism Works
science.howstuffworks.com/life/inside-the-mind/human-brain/alcoholism.htm
Alcoholism can be difficult to spot. Learn the difference between heavy drinking and alcoholism, how alcohol affects the body, what factors may lead to alcoholism and what treatments are available for this addiction.
How the Diagnostic and Statistical Manual of Mental Disorders Works
Now in its fifth edition, the DSM is the bible of diagnosing mental disorders in the U.S. Learn how the DSM works from HowStuffWorks.
How Breakups Work
people.howstuffworks.com/breakup.htm
Relationship breakups are some of the worst events that can happen. What happens to the psyche in a breakup? And is there a way to make a breakup hurt less?