New research shows it’s possible to edit the DNA of human embryos with more precision. But scientists warn it’s still not ...

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

Researchers have developed a new tool that can screen genes involved in human development at unprecedented scale and speed, using it in a proof-of-principle study to reveal new insights into human ...

Biologists have long puzzled over how organs develop into their final shapes, and the nearly transparent bodies of young sea ...

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 ...

Researchers relied on a newer gene-editing technique that may make it possible to engineer embryos, a prospect that has long alarmed bioethicists. By Carl Zimmer Scientists at Columbia University have ...

The biological parents of a child at the center of a fertility embryo mix-up have been located. Still, an attorney for the couple raising the child said a transfer is not being planned or contemplated ...

Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including humans: the therapsids. They were first described more than 150 years ago, ...

Eating large amounts of ultra-processed food (UPF) is linked not only to reduced fertility in men, but also to slower growth in early embryos, and smaller yolk sacs, which are essential for early ...

Eating large amounts of ultra-processed food (UPF) is linked not only to reduced fertility in men, but also to slower growth in early embryos, and smaller yolk sacs, which are essential for early ...

Knoepfler is a professor of cell biology and human anatomy at UC Davis School of Medicine. Researchers are racing to engineer highly realistic human embryo models using stem cells in the lab. Some of ...