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Why do you have two lungs but only one heart?
health.howstuffworks.com/human-body/systems/circulatory/two-lungs-one-heart.htm
The two lungs-one heart system evolved because that was all we needed to survive. Learn more about the evolution of the two lungs-one heart system.
Sam Snead
entertainment.howstuffworks.com/sam-snead-golfer.htm
Sam Snead's legendary golf swing led him to 81 PGA victories. Learn more about Sam Snead and how he became the oldest player to win on the PGA Tour.
How the Jeep Hurricane Works
auto.howstuffworks.com/jeep-hurricane.htm
The Jeep Hurricane is an extreme off-road concept vehicle. Learn about the Jeep Hurricane's dual engine design and find out how the Jeep Hurricane performs off-road.
How KenKen Puzzles Work
entertainment.howstuffworks.com/puzzles/kenken-puzzles.htm
KenKen puzzles involve filling a number grid, with the added element of mathematical cages. Learn how KenKen puzzles work at HowStuffWorks.
What Was the First War?
science.howstuffworks.com/invent-war.htm
Did humans invent war out of necessity, or was it invented purely to take advantage of someone else? Find out why we invented war in this article.
10 Valentines From Parents to Kids
people.howstuffworks.com/culture-traditions/holidays-other/parent-child-valentines.htm
Looking for the perfect way to show your little guy or gal you love them? Check out these 10 tips for some great Valentine's Day ideas.
How Army Reconnaissance Jobs Work
science.howstuffworks.com/military/army-careers/army-reconnaissance-jobs.htm
Army reconnaissance jobs are highly sought-after. Visit HowStuffWorks to learn all about Army reconnaissance jobs.
5 Tips for Bonding With Older Stepkids
Looking for tips for bonding with older stepkids? Visit HowStuffWorks Family to find 5 tips for bonding with older stepkids.
Where can I find successful law school application essays?
Law school application essays can make a great difference in the law school application process. Learn about law school application essays.
How the National Symphony Orchestra Works
entertainment.howstuffworks.com/arts/theater/national-symphony-orchestra.htm
The National Symphony Orchestra is extremely well-respected. Visit HowStuffWorks to learn all about the National Symphony Orchestra.