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There are lots of theories. Maybe fluorescence helps them find each other in the dark?

Kissing bugs seem to be spreading throughout the U.S. HowStuffWorks looks at how dangerous these insects actually are to humans.

The periodic table of elements was an important turning point in the history of the chemistry. Take HowStuffWorks' periodic table quiz to learn more.

Whether wholesome or saturated with sugar, cereal is a popular breakfast staple. Find out more about cereal with this HowStuffWorks quiz.

Around 90 percent of an iceberg is under the water, but changing weight distribution caused by melting can make it flip.

Medical conditions mimic allergies more often than you think. Learn more about how medical conditions mimic allergies at Discovery Health.

You've probably never seen one, but it looks like a waterbed in your yard. And trust us, if you do see one, you'll have an impulse to pop it.

Lots of trees are losing their leaves this time of the year. But evergreens keep theirs year-round. What gives?

A lot of us use it every day, but what is actually in half-and-half and where did it come from?

We will all one day fall in love, but with which of the zodiac signs? If you would like to find out which one it is, then you can take this quiz!

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