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Butterfly color is some of the most striking in nature. Learn how butterfly wings use ordinary color and structural color.

Ringing in ears occurs when noises louder than shouting damage parts of our inner ears. Find out more about why your ears ring at HowStuffWorks.

Is it illegal to not have a name? Maybe not. But it is certainly a lot of trouble. Find out why it's not exactly illegal to not have a name.

How did dinosaurs leave tracks in solid stone? They walked in soil that became sedimentary rock. Learn how did dinosaurs leave tracks in solid stone?

People love to swim with them so why are orca called killer whales? Find out why orca are called killer whales and whether an orca is a whale.

The behavior of orangutan introverts stem from their need to find food. Learn why orangutan introverts are more solitary than their fellow apes.

Our home remedies for sensitive teeth stress dental care and warding off dental diseases.

Ford Studio chief Joe Oros oversaw the design of the prototype that would become the 1965 Ford Mustang. Read his account of how it all happened.

Casino is a card game with quite a few details, but it's easy to learn and fun to play. Learn how to play Casino and Royal Casino.

A sous chef has many jobs in the kitchen, all to make the kitchen run smoothly. Learn what a sous chef does to keep the kitchen in check.

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