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Rising temperatures turning major sea turtle population female

Sand temperatures determine the sex of turtle hatchlings, with warmer temperatures resulting in more females. During the past two decades, temperatures on islands in Australia’s northern Great Barrier Reef have increased to the point “that virtually no male turtles are now being produced from these nesting beaches,” the researchers from the United States and Australia write this week in the journal Current Biology.

The study “raises new concerns over the immediate threats of climate change to sea turtle populations,” say the researchers from NOAA Fisheries and the Queensland Department of Environment and Heritage Protection.

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