爬行动物的性别末日

The sex of many turtles, crocodilians, and other reptiles is determined by the temperature at which their eggs incubate. Global warming could doom them BY ELIZABETH PRESTON UNDER NO LIGHT BUT THE STARS, a green sea turtle hauls herself out of the surf and onto the familiar sand of Alagadi Beach on the northern coast of Cyprus. She doesn’t notice any predators as she makes her way up the beach; tonight will be the night. When the turtle reaches a satisfactory spot, she nestles into the warm sand and begins excavating a deep pit. Nothing can distract her; she’s gone into a kind of trance. She pushes out 100 wet, leathery eggs into the pit. …