Early in development, many animals pick a team—male or female—based on their genetics, and, with time, acquire the ...

A duplicated gene evolved into a switch that determines sex in frogs, revealing how evolution can safely reshape critical ...

"Men are adapting consciously and also without realizing it," declared actress Meryl Streep at Barnard College on Monday. "They're changing their deepest prejudices to accept and to regard as normal ...