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Take a look at these heart pictures to learn about the different parts of the heart and more. See our heart pictures to learn more.

Sure, they're adorable. And they're apparently into yoga. But could they really edge out the dog as our favorite pet?

Eccrine sweat glands are an essential part of our thermoregulation. Visit Discovery Health to learn all about eccrine sweat glands.

Apocrine sweat glands are an essential part of our thermoregulation. Visit Discovery Health to learn all about apocrine sweat glands.

Sound waves carry music to our ears, but they also carry the principles of physics. Find out how physics and music are intertwined.

Dog pictures give you a glimpse into the world of our favorite canine friends. See pictures of chihuahuas, pugs, poodles and more.

Bartering and the barter system are alive and well, but how do they work in our modern age? Learn about the barter system and bartering.

Trace the economy's path from subprime collapse to the mortgage crisis to the credit market crisis. Check out our Recession Pictures.

Are married people happier than singles? Take a look at our research into whether not married people are happier at HowStuffWorks.

Are you wondering how to cook the perfect turkey for Thanksgiving? Check out our article and learn how to cook the perfect turkey.

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