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How do airlines determine how expensive a pet plane ticket is?
animals.howstuffworks.com/pets/pet-travel/pet-plane-ticket-cost.htm
Pet plane ticket costs are set by each airline and usually are the same, no matter how far your pet goes. Learn about costs for a pet plane ticket.
Could Giant Sea Kelp Be the Next Biofuel Source?
science.howstuffworks.com/environmental/energy/sea-kelp-biofuel.htm
Move over corn and soybeans, there's a better biofuel in town. And this one grows in abundance at the bottom of the ocean.
How Roundabouts Work
science.howstuffworks.com/engineering/civil/roundabouts.htm
Roundabouts aren't all that complicated, but they're still relatively rare in the U.S., especially when compared with France.
How the U.S. Postal Service Works
people.howstuffworks.com/usps.htm
The U.S. Postal Service employs about 500,000 people and is responsible for the delivery of mail. Learn more about the United States Postal Service.
New Ruling Cracks Down on Emotional Support Animals on Planes
Some airline passengers have tried to skip paying pet fees by claiming their dogs, cats or even pigs are emotional support animals. But a new ruling has put an end to that.
How the U.S. Coast Guard Works
science.howstuffworks.com/coast-guard.htm
Unique among the U.S. armed forces, the Coast Guard is perpetually on active duty, entrusted with lots responsibilities and chronically underfunded. Learn about the U.S. Coast Guard.
How do automakers use independent research?
How do automakers use independent research? Visit HowStuffWorks to learn how automakers use independent research.
10 Best Roofing Materials for Warmer Climates
home.howstuffworks.com/home-improvement/construction/green/10-best-roofing-materials.htm
The first real line of defense against the heat is a building's roof. And some materials are better than others -- especially in hot climates. See which ones are best at keeping the heat at bay.
Sperm Banks
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/sperm-bank.htm
Sperm banks use sperm donors to gather or preserve sperm. Learn how a sperm bank stores sperm and screens donors.
What happens to weapons confiscated at the airport?
people.howstuffworks.com/weapons-confiscated-at-airport.htm
Thousands of weapons are confiscated at airports every day. Learn where weapons confiscated at the airport go after they leave airport security.