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Do whales and dolphins sleep?
animals.howstuffworks.com/mammals/question643.htm
Whale sleep patterns are different from land mammals in that they are never really unconscious when they sleep. Learn about whale sleep patterns.
Do exhaust cutouts increase horsepower?
auto.howstuffworks.com/exhaust-cutouts-increase-horsepower.htm
Adding an exhaust cutout is a simple way to free-up some additional horsepower in your car or truck. Learn more at HowStuffWorks.
Why do old couples look alike?
science.howstuffworks.com/life/genetic/old-couples.htm
Many old couples tend to look like each other due to shared life experiences, according to a recent study. Learn more about why older couples look alike.
How Do Energy Drinks Work?
science.howstuffworks.com/innovation/edible-innovations/energy-drink.htm
Energy drinks are everywhere, but how exactly are they supposed to give you energy? What's really in them, and are they safe? Find out.
Do airplanes routinely dump their fuel before landing?
science.howstuffworks.com/transport/flight/modern/planes-dump-fuel-before-landing.htm
Why would a pilot ever want to eject an airplane's fuel intentionally? And why would it happen during a flight? Although it sounds alarming, a fuel dump is a safe procedure.
How do we make decisions?
science.howstuffworks.com/life/inside-the-mind/human-brain/make-decisions.htm
Despite our best intentions, sometimes we just make bad choices. Is it possible to fight your own worst instincts? Only if you can spot these flaws in your decision making process.
How do astronauts eat in space?
science.howstuffworks.com/astronauts-eat-in-space.htm
Astronauts eat in space with the help of special contraptions and carefully packaged food. Learn more about how astronauts eat in space.
Why do I need to use primer?
home.howstuffworks.com/home-improvement/home-diy/painting/painting-primer.htm
Primer can mean the difference between an excellent paint job and one with glaring mistakes. Learn why primer can make a wall shine.
What Does a Boxing Promoter Do?
entertainment.howstuffworks.com/boxing-promoter.htm
A boxing promoter is in charge of setting up and paying for everything involved in a boxing match. Learn about the role of a boxing promoter.
Winter Tires Really Do Make a Difference in the White Stuff
auto.howstuffworks.com/winter-tires-make-a-difference-in-snow.htm
How are winter tires different? HowStuffWorks talks to experts to find out how winter tires differ from all-season and snow tires.