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Indigenous histories, archeology and DNA show that horses were central to Native American cultures in the Great Plains as early as the 1600s, a century before European records suggest.
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Researchers have shown that using machine learning to analyze existing data can yield insights about the impact of El Niño on the world's great river systems—the Ganges, Congo and Amazon—and ultimately, regional weather patterns.
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The researchers suggest these variations have been maintained by natural selection and may protect against infectious diseases, outbreaks and starvation.
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The proportion of students who utilize only one or two funding sources decreased over recent decades, while those juggling three or more increased. Students using multiple sources have also become less likely to obtain a graduate degree.
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Opinions, findings or recommendations of NSF awardees or their institutions do not necessarily reflect the views of the National Science Foundation. |
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