What Is Unusual about Lemmings?
What Is Unusual about Lemmings? The strange thing about lemmings is the way they, apparently, commit mass suicide. These grey or reddish-brown rodents look like mice,...
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How Do Trains Work?
How Do Trains Work? Long before automobiles took to the roads and airplanes flew into the skies, people rode horses to get from one place to another quickly. Horses...
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When Do Birds Migrate?
When Do Birds Migrate? Millions of birds of many different varieties migrate at the end of summer. With unfailing regularity they leave the regions where they were born...
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How Can You Tell How Far Away Lightning Is?
How Can You Tell How Far Away Lightning Is? You can tell how far away lightning is by counting the seconds between the lightning flash and the clap of thunder....
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Who Are Gypsies?
Gypsies are wandering people. They travel in groups from one place to other by horse-driven or bullock-carts. They do not live permanently at a particular place. They...
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