The development of an embryo is one of the most fundamental processes in biology. Early in this process, it is determined ...

Cell division during the early stage of embryo development is a trade-off between speed and accuracy; the cells need to ...

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 ...

Researchers use a light-activated protein to illuminate when embryos can cope with disruptions to cell division.Cell division ...

Researchers said their model mimics certain key features of a 20-day-old human embryo but does not have the potential to develop into one. Sign up for the top news stories every day to keep you ...

What happens in the first weeks after a human embryo implants in the uterus has been a black box. Now, biologists have had a chance to study this stage of development in detail for the first time. The ...

Biological processes depend on puzzle pieces coming together and interacting. Under specific conditions, these interactions can create something new without external input. This is called ...

A team of scientists has just gotten a closer peek into one of the earliest and most fundamental steps of creating a human life. Research out today highlights how they captured—for the first ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. The donation of a miniscule human embryo the size of a poppy seed has given scientists an extremely rare glimpse into an ...