In mammals, hair follicles emerge during embryonic development, forming geometric patterns that vary from one species to ...

Getting it over the finish line was a labor of love—and now, more than five years after her death, the lab of former Sloan ...

For the first time, a frozen embryo has been recognized by the law as a person with rights. This decision by the Alabama Supreme Court last week is a huge victory for anti-abortion groups, who have ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. What do the earliest stages of a pregnancy look like? Embryonic ...

Research from Ph.D. candidate Bohan Chen in the lab of Idse Heemskerk of the Department of Cell and Developmental Biology at the University of Michigan Medical School and their colleagues improves ...

Specifically targeting the HBP impaired the development of the primitive streak while inhibiting late-stage glycolysis with affected mesodermal cell migration without hindering initial cell fate ...

A discovery upends decades of assumptions regarding DNA replication. The study show that DNA replication in early embryos is different from what past research has taught, and includes a period of ...

Five zebrafish embryos in a tiny drop of water. The yolk sac is clearly visible, with the first two cells located at its tip. Hair, nails, and horns, all made up of keratin, are some of the hardest ...

The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...