In a study published Wednesday in Science Advances, Todd and her colleagues detail the molecular events behind this ability, as well as what keeps mammals stuck as one sex or another. The researchers looked at the bluehead wrasse, a reef fish that swims in small groups of a dominant blue-headed male and a posse of smaller yellow females. Normally the male and females stay as they are, feeding together and occasionally mating. But if a predator happens to snatch up the lead male, the dominant female in the group will become a male. In a few days, she courts other females.

A whistleblower who works for Apple , the maker of Siri software, said the voice assistant can accidentally activate during the most private of times — like when people are discussing sensitive business or medical matters. Or cutting drug deals. Or having sex. These recordings are accompanied by user data showing location, contact details and app data.

Many expectant parents are impatient to learn if they are having a boy or a girl. None of these were accurate. The tests were more accurate when they use a DNA amplification technique known as real-time quantitative polymerase chain reaction. In my opinion, for expectant parents who are at risk of having a child with a sex-linked genetic disorder, these tests are an excellent option.

Once a taboo subject, sexual wellness has emerged as a category to watch, offering a selection of innovative products looking to destigmatize issues ranging from body care to menstrual cycles. Her presentation will be followed by a panel featuring trailblazing industry experts including:. The event will take place at Hearst Corporation in Midtown Manhattan.