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  1. From the August 1, 1931, issue

    THE TRUTH ABOUT DEATH VALLEY Death Valley is a deep trough between two mountain ranges. It is something over 100 miles long and averages 10 miles wide. Within less than 100 miles of Mt. Whitney, the highest peak in the United States proper, it sinks its lowest depression to 276 feet below sea level. This […]

    By Science News
  2. Animals

    Don’t look now, but is that dog laughing?

    Researchers have identified a particular exhalation that dogs make while playing as a possible counterpart to a human laugh.

    By Susan Milius
  3. Paleontology

    For past climate clues, ask a stalag-mite

    Mites fossilized in cave formations in the American Southwest show that at times during the past 3,200 years the climate there was much wetter and cooler.