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Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Dermatological changes with myxedema can occur behind the eyes or in the lower leg, as shown here.
With the research technique called brainbow, each neuron is labeled with a different color, ...
Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period