Green eggs and harm?
Scientists studying green sea turtles living along the Great Barrier Reef in Australia have noticed a trend in the population. More than 99 percent of the young born on beaches along the northern stretch of the reef are female.
Green sea turtle eggs develop as male or female depending on the temperature at which they mature in the sand. While it is normal that their numbers skew toward having more females than males, the imbalance has shifted markedly in the last 20 years.
In past years, one male turtle was born for every four females. Today, in the cooler southern Great Barrier Reef, 67 percent are female, while in the warmer northern reaches of the reef, one male is born for every 116 female hatchlings.
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