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Earth's Oldest Color Was Pink

science.howstuffworks.com/life/cellular-microscopic/earths-oldest-color-was-pink.htm

Scientists have found that ancient fossilized chlorophyll was dark red and purple in its concentrated form, which means that when diluted by water or soil, it would have lent a pink cast to earth and sea.

How to Save a Choking Cat

animals.howstuffworks.com/pets/how-to-save-a-choking-cat.htm

Choking is life threatening for your cat. The harder the cat tries to breathe, the more panicky he or she can become. Learn to save a choking cat.

6 Best Lizard Pets for Your Home

animals.howstuffworks.com/pets/otherpets/best-lizard-pets.htm

The best lizard pets still require specialized care, so make sure to do your research before welcoming one of these reptiles into your home.

Do You Know if This Word Is a Noun, Verb, Adverb or Adjective?

play.howstuffworks.com/quiz/do-you-know-this-word-is-a-noun-verb-adverb-adjective

Nouns, verbs, adverbs and adjectives are four of the parts of speech we need to know to put together an intelligent sentence. Can you identify each of these?

Will computers overtake humans in intellectual ability?

science.howstuffworks.com/life/inside-the-mind/human-brain/computer-intellectual-ability.htm

A computer's intellectual ability is faster than the human brain. Find out if computers can be programmed to overtake humans in intellectual ability.

How to Get Great Contrast in Photography

electronics.howstuffworks.com/cameras-photography/tips/how-to-get-contrast-in-photography.htm

Want to know how to get great contrast in photography? Visit HowStuffWorks to learn about getting contrast in photography.

How to Read House Plans

home.howstuffworks.com/home-improvement/construction/planning/how-to-read-house-plans.htm

It's tough to read house plans when they're thick with seemingly cryptic symbols. How can you interpret their mysterious language?

The Evil Eye's Ancient Power Still Resonates Today

people.howstuffworks.com/evil-eye-meaning.htm

Belief in the evil eye has existed since at least 3300 B.C.E. and is found in Jewish, Islamic and Christian cultures of the Mediterranean and Middle East. But why has belief persisted for so long?

Can You Pass This Incredibly Difficult Logic Test?

play.howstuffworks.com/quiz/can-you-pass-this-incredibly-difficult-logic-test

So you think you're pretty good at solving riddles, puzzles and brain teasers, eh? It's time to really put your deduction skills to the test with this difficult logic quiz! Let's see how many you can get right!

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