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Wood first appeared in plants called progymnosperms.
Some male birds and mammals congregate in communal courting grounds called leks.
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
With the research technique called brainbow, each neuron is labeled with a different color, ...
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin