The current practice of freezing embryos—used to assist reproduction in humans or animals or to conserve endangered species—routinely causes ice to form within the cells, ripping through cell ...

The advancement of science is a funny thing. We may know a lot about alpaca sex, but when it comes to how human babies are made, there are still gaps in our knowledge. Now, biologists at the Max ...

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 ...

Mouse embryos can make it to an early stage of development in space. In an experiment conducted in 2021, a few hundred frozen two-cell embryos from mice thawed and grew over four days on the ...

China in a first-of-its-kind experiment has sent “artificial human embryos” to space, aiming to learn more about how ...