Add Yahoo as a preferred source to see more of our stories on Google. As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of species over the course of ...

Many state legislatures are seriously considering human embryos at the earliest stages of development for legal personhood. Total abortion bans that consider humans to have full rights from the moment ...

Some of the old distractions concerning the abortion debate have been circulating, including in letters to the editor in the News Tribune (Reader's View: "Are pro-life zealots really control freaks?" ...

This complicated but fundamental question has enormous ethical, legal, medical, philosophical, religious and scientific overtones. An article in The Journal of the Association of Basic Medical ...

In 2016, two Japanese reproductive biologists, Katsuhiko Hayashi and Mitinori Saitou, made an announcement in the journal Nature that read like a science-fiction novel. The researchers had taken skin ...

Conception and pregnancy are complicated processes that depend on many factors, including the production of hardy sperm, healthy eggs, unblocked fallopian tubes that allow the sperm to reach the egg, ...