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Photo of the Week (7/26/10)


Turtle Trepidation Over Rising Temperatures
Coastal use in Seattle, WA
Carey Russell/Marine Photobank
While climate change is a looming threat to many different animals, sea turtles are among those most vulnerable. Changes in temperatures of the sea and the beach can affect them greatly, including influencing whether a male or female turtle hatches. As the eggs in nests buried in the sand incubate, warmer sand temperatures tend to cause more females to hatch whereas cooler temperatures tend to cause more males to hatch. Scientists predict that if by 2070 an extreme scenario of warming were to occur, some turtle nesting grounds would become dominated by females, throwing off the gender balance and threatening sea turtles' ability to reproduce.

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