In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding ...

Every cell in our body has a sex. But most research so far has focused on our gonads—ovaries or testes—and not on the early ...

For the first time, researchers at Leipzig University and other institutions have gained comprehensive insights into the ...

Yet, from an evolutionary standpoint, it’s far more plausible that female-like organisms preceded males, especially ...

Professor Anna Rowlands, who spent two years seconded to the Vatican during Francis’s papacy, said the cardinals will want to ...

All eyes are on Vatican City for the sign of a new pope, as cardinals processed into the Sistine Chapel to begin the secret ...

In the new book Personhood, historian and law professor Mary Ziegler explores how the push to grant embryos and fetuses full ...