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Discipline-specific training can take years to perfect.
Ngandong calottes from Java are the youngest H. erectus fossils at perhaps 27,000-50,000 years old.
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
The number of words correctly completed in the New York Times crossword puzzle increases with age ...
An overlapping record extends back thousands of years of tree ring width
Earth 150 Million Years Ago