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

Attorneys argued as to whether a Harvard researcher — accused of smuggling frog embryos — brought “biological materials” into the U.S., at a Wednesday court hearing, as reported by The Associated ...

A Harvard Medical School scientist from Russia who had been detained since February for bringing frog embryos into the country for research purposes was released Thursday after prosecutors withdrew ...