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Where do butterflies get their striking colors?
animals.howstuffworks.com/insects/butterfly-colors.htm
Butterfly color is some of the most striking in nature. Learn how butterfly wings use ordinary color and structural color.
Why are antidepressants the most prescribed drug in the U.S.?
health.howstuffworks.com/medicine/medication/antidepressant-most-prescribed.htm
Antidepressant medications are now the most prescribed drugs. Find out why doctors are prescribing more antidepressant medications.
How did dinosaurs leave tracks in solid stone?
science.howstuffworks.com/environmental/earth/geology/stone-dinosaur-track.htm
How did dinosaurs leave tracks in solid stone? They walked in soil that became sedimentary rock. Learn how did dinosaurs leave tracks in solid stone?
What are tiny leaning cars?
auto.howstuffworks.com/under-the-hood/trends-innovations/tiny-leaning-car.htm
Tiny leaning cars are enclosed like your average car but operate more like motorcycles. Learn more about these unique tiny leaning cars of the future.
The Great Flood: More Than a Myth?
science.howstuffworks.com/nature/climate-weather/storms/great-flood.htm
Many cultures have a flood myth -- an ancient story of a deluge that swallowed the Earth. So could a great flood really have happened, and how would we be able to tell?
Can I make my living in Second Life?
computer.howstuffworks.com/internet/social-networking/information/second-life-job.htm
What is revolutionary about Second Life is that it's not only legal to make real money from your characters virtual endeavors -- it's encouraged. The exchange of your accumulated virtual dollars into "real" dollars is built into the system.
How Printable Computers Will Work
computer.howstuffworks.com/printing-computer.htm
Printable integrated circuits could dramatically lower production costs and make prototypes much easier. See how they will work!
How do armadillos roll into a ball?
animals.howstuffworks.com/mammals/armadillo-ball.htm
An armadillo ball is what it sounds like: an armadillo rolled up in a ball. Read why an armadillo ball is more than a shape -- it's a defensive tactic.
How Tongue Weight Works
auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/tongue-weight.htm
Tongue weight is an important factor to consider when towing. Learn what tongue weight is and how to calculate it at HowStuffWorks.
Are married people happier than singles?
science.howstuffworks.com/life/inside-the-mind/emotions/married-people-happier-than-singles.htm
Are married people happier than singles? Take a look at our research into whether not married people are happier at HowStuffWorks.