A pair of economists from the University of Warwick and Institute for the Study of Labor in Bonn compares happiness levels, as gauged by international surveys like the Gallup World Poll, World Value Survey and the European Quality of Life Surveys, in various countries and explores whether there could be a genetic component to being happy.

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A genomic analysis of modern and ancient maize reveals a complicated domestication history, according to Reuters.

CNBC reports that half of academic researchers leave after about five years.

In PLOS this week: MYRF variant linked to congenital diaphragmatic hernia, analysis of the "dragon's blood" red resin produced by traditional medicine plants, and more.

Researchers have used genetic analysis to confirm a new type of salamander, the New York Times reports.