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Why Is Yawning Contagious?
science.howstuffworks.com/life/inside-the-mind/human-brain/contagious-yawn.htm
Contagious yawning is associated with the same parts of the brain that deal with empathy, according to a recent study. Learn about contagious yawning.
How Slot Car Racing Works
entertainment.howstuffworks.com/slot-car-racing.htm
Slot car racing became popular in the 1960s and is still going strong. Read about the history and science of slot car racing.
10 Wildly Wrong Animal Stereotypes
animals.howstuffworks.com/animal-facts/10-wildly-wrong-animal-stereotypes.htm
Most animals are known for certain personality traits but are they rooted in any accuracy? Learn more about wrong animal stereotypes at HowStuffWorks.
Can We Guess What You're Most Afraid Of?
play.howstuffworks.com/quiz/can-we-guess-what-youre-most-afraid
Whether it's rational or not, fear is definitely a factor when it comes to this quiz. Let's find out which of the most common phobias fits you the best.
Why Do Leaves Change Color in the Fall?
science.howstuffworks.com/life/botany/leaves-turn-red.htm
If you ever wondered why leaves change color in autumn, you're not alone. Learn why leaves change color, and how they get that vibrant red hue.
10 Foods That Contain Antibiotics
recipes.howstuffworks.com/10-foods-contain-antibiotics.htm
Some foods are naturally antibiotic; others have antibiotics thrust upon them. Here are 10 foods that contain antibiotics at HowStuffWorks.
How Dietary Supplements Work
health.howstuffworks.com/wellness/food-nutrition/vitamin-supplements/dietary-supplements.htm
There's a lot of information (and misinformation) out there about dietary supplements. Learn the facts about them in this article at HowStuffWorks.
Elemental Haiku: A Poetic Take on the Periodic Table
science.howstuffworks.com/elemental-haiku-poetic-take-on-periodic-table.htm
Award-winning poet and fiction writer Mary Soon Lee has found a charming way to combine science and poetry in a refreshing new take on the periodic table of elements.
How Horoscopes Work
entertainment.howstuffworks.com/horoscopes-astrology/horoscope.htm
Astrology holds that the relative positions of stars and planets have influence over the lives of human beings. Believers call it a science, while non-believers call it nonsense. Learn the basics of astrology.
How Animal Imprinting Works
animals.howstuffworks.com/animal-facts/animal-imprinting.htm
Animal imprinting concerns how some species of animals learn during a short period immediately after birth. Learn more about animal imprinting.