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News From the Field

How turning down the heat makes a baby turtle male

May 10, 2018

Scientists have started to crack the 50-year-old puzzle of how temperature turns baby turtles male or female. In a study in the journal Science, researchers show that cooler egg incubation temperatures turn up a key gene called Kdm6b in the turtle's immature sex organs. This in turn acts as a biological "on" switch, activating other genes that allow testes to develop without altering the underlying genetic code.Full Story

Duke University

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2019, its budget is $8.1 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 50,000 competitive proposals for funding and makes about 12,000 new funding awards.

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