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Cottonmouth snakes are often called water moccasins and are one of only four venomous snakes found in North America.

These two amphibians look similar and are often confused for each other. So how many traits do they share?

Stalactites and stalagmites are two common cave features that are often mistaken for each other. Learn about stalactites and stalagmites.

Depression and recession are often used interchangeably, but there's a difference between them. Learn the economic cues that signal them.

A hand drill is often overshadowed by the more popular power drill, but is still useful for applications such as woodworking. Learn more.

In challenging economic times, people often turn to gold as a hedge against a falling stock market. But is this a good idea?

There's often a strong, quite pleasant, smell right after a rain shower. What accounts for petrichor, the 'smell of rain'?

Exotic fragrances often have roots in natural, sweet-smelling substances. Learn about 10 sources for exotic fragrances.

Do you love cats, dream about having cats, but know that these adorable felines often trigger your allergies?

Most people keep up with cleaning the toilet bowls, but the tanks are often overlooked. Which means mold and bacteria are festering!

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