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 ...

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.

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

This paper was retracted by Science Advances on May 19, 2021, after readers identified that the described asymmetrical movement of sperm cannot be confirmed using only 3D flagellar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