In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a 'fairy tale,' rooted in ...

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

Nearly half the embryos studied underwent developmental arrest because of genetic mishaps in early development—a revealing insight that suggests more IVF babies could come to term with changes in the ...

An Alabama Supreme Court ruling that recognized the personhood of embryonic life sparked a nationwide debate about in vitro fertilization (IVF) over the last three weeks — but some people might be ...

Frozen embryos are people and you can be held legally responsible if you destroy them, according to a ruling by the Alabama Supreme Court on Friday. The decision could have wide-ranging implications ...