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Can You Identify These Land Animals While They're Swimming?

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Humans live on land, and we love nothing more than a day at the beach. Why would it be any different for land animals? Doggie paddle your way through these photos of animals taking the plunge, and see if you can identify all of them!

The Famous Slogans Quiz!

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We hear these slogans all the time, but how well do we know what company they are associated with? Take this quiz if you would like test your skills!

Dream Meanings: Interpret Your Dreams & Unlock Their Secrets

science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/dream-meanings.htm

Your dreams hold hidden messages. Unlock the secrets of dream symbolism and discover what your subconscious is trying to tell you.

Andes Mountains: Home to Rainforests, Volcanoes and Alpacas

science.howstuffworks.com/environmental/earth/andes-mountains.htm

The Andes mountains span over 4,300 miles along South America's western edge, traversing seven countries from Venezuela to Chile. Famous for its towering peaks like Aconcagua and ancient ruins such as Machu Picchu, the Andes are a captivating mix of natural wonders and historical treasures.

Which Was It: Toyota, Chevy, Dodge, or Ford?

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Don't swerve out of control when you come face to face with these challenging questions! If you consider yourself an expert gearhead, then this quiz should be no problem for you. Get ready to switch gears and show us what you've got!

Can You Identify These Crystals and Gemstones?

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Crystals and gemstones are majestic things found in nature. Of course, they can be grown outside nature, but the most beautiful, rare and valuable ones come right from the earth. Think you can identify all of them? Take our quiz to find out which ones you can identify!

Can You Pass This General Knowledge Quiz While Being Distracted by Adorable Puppies?

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Could you name the largest planet in our solar sys- ... is that a Goldendoodle? Aww! Put your smarts - and your concentration - to the test in this puppy-filled general knowledge skills challenge.

Can You Match the Famous Piece of Art to Its Movement?

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For artists and art historians, there's one thing to know: Art is in a constant state of flux as movements come and go. See how well you know these movements across time by taking this quiz.

10 Outrageous Experiments Conducted on Humans

science.howstuffworks.com/innovation/scientific-experiments/10-outrageous-experiments-conducted-on-humans.htm

Some truly bizarre and troubling things have been done through the ages in the quest for scientific knowledge. The 10 experiments on this list all made humans into lab rats.

How Facial Recognition Technology Works

electronics.howstuffworks.com/gadgets/high-tech-gadgets/facial-recognition.htm

Humans have always had the innate ability to recognize and distinguish faces, but computers only recently have shown the same ability. Learn how facial recognition systems work.

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