Using a tiny, spherical glass lens sandwiched between two brass plates, the 17th-century Dutch microscopist Antonie van Leeuwenhoek was the first to officially describe red blood cells and sperm cells ...

When considering how sperm move, the word "swimmers" comes to mind. The classic microscopic image is of a tiny cell swishing its tail from side to side as it propels forward. A new 3D model upends ...

Katsuhiko Hayashi, a developmental geneticist at Osaka University, is working on ways to make what he calls "artificial" eggs and sperm from any cell in the human body. (Kosuke Okahara for NPR) ...

Dutch scientist Antonie van Leeuwenhoek made extraordinary observations of blood cells, sperm cells and bacteria with his microscopes. But it turns out the lens technology he used was quite ordinary.

This paper was retracted by Science Advances on May 19, 2021, after readers identified that the described asymmetrical movement of sperm cannot be confirmed using only 3D flagellar waveform data. The ...

Update 5/29/2021, 10:15 a.m.: On May 1, 2021, the authors of the study covered in this article asked the journal to retract their work following concerns from outside scientists about the mathematical ...

They're leading in the development of IVG, new fertility technology that could make sperm and eggs from practically any cell in the body. The... Japanese scientists race to create human eggs and sperm ...