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Can your skin help you breathe?

health.howstuffworks.com/skin-care/information/health-factors/can-your-skin-help-you-breathe.htm

Can your skin help you breathe? Find out whether your skin can take in oxygen and help you breathe.

A Calico Cat Wears a Coat of Many Colors

animals.howstuffworks.com/pets/calico-cats.htm

Calico cats are almost all female. And they inherit their looks from their mothers. HowStuffWorks explains the genetics behind these unusual cats.

How Free Radicals Affect Your Body

science.howstuffworks.com/life/cellular-microscopic/free-radicals.htm

When an electron loses its partner, it creates a free radical. So is that free radical now potentially hazardous to your health?

Mushrooms: Wash 'em or Brush 'em Off?

recipes.howstuffworks.com/tools-and-techniques/wash-or-brush-mushrooms.htm

HowStuffWorks asks whether it's necessary to wash mushrooms before you eat them.

How Are Airplane Cabins Pressurized?

science.howstuffworks.com/transport/flight/modern/airplane-cabin-pressure.htm

Without the system that pumps unused air from an aircraft's engines into the cabin, passengers and crew would be unable to breathe at 30,000 feet. But how does that system work?

Why Is the U.S. Dollar the World's Currency?

money.howstuffworks.com/us-dollar-worlds-currency.htm

Around the world, people convert their money into U.S. dollars, making it the de facto global currency. But how did the U.S. dollar become so mighty?

Cadmium: The Highly Toxic Metal That Powers the World

science.howstuffworks.com/cadmium.htm

Cadmium is a natural metal and the leading component in rechargeable batteries and solar cells. It is also highly toxic and heavily regulated.

18 Scariest Horror Movies to Guarantee You Won't Sleep Tonight

entertainment.howstuffworks.com/scariest-horror-movies.htm

Some horror movies just make you squirm. Others make you check the locks. But the scariest horror movies? These are the ones that invade your dreams, hijack your pulse, and make you reconsider walking down that dark hallway. They're disturbing, intense, and engineered to make your brain scream.

The Largest Tsunami Ever Recorded Only Claimed 2 Lives

science.howstuffworks.com/nature/natural-disasters/largest-tsunami-ever-recorded.htm

If you're lucky, you've never seen a tsunami in person, but you know that this type of massive wave can cause enormous damage. They can be measured, too, which easily leads to the question: What was the largest tsunami ever recorded?

Meet the Zombie Ant Fungus That Inspired HBO's 'The Last of Us'

science.howstuffworks.com/life/cellular-microscopic/zombie-ant-fungus.htm

The Ophiocordyceps unilateralis fungus makes a mockery of ant free will. But how does it take over the ant body to control its host?

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