Human sperm can swim through surprisingly viscous fluids with ease – and they seemingly defy Newton's third law of motion to ...

A new mathematical model predicts that mammalian sperm cells have two distinct swimming modes. This prediction opens new questions about potential connections between sperm cells’ motor activity and ...

Sperm are basically cells with a tail. It can seem surprising that they are able to navigate and swim with purpose. New research has shown that sperm are even able to switch up directions, and alter ...

The behavior of sperm cells is due, in part, to the individual DNA make-up of these cells, rather than only to the genetics of males, finds a team of scientists. Its results, which provide a new ...

One essential component of each eukaryotic cell is the cytoskeleton. Microtubules, tiny tubes consisting of a protein called tubulin, are part of this skeleton of cells. Cilia and flagella, which are ...

Researchers used machine learning to discover that sperm with a wide head relative to length are more likely to clump together and swim collectively, a rare behavior that sometimes helps them reach an ...

New research suggests that bird sperm cells with a spiral or screw-like shape swim faster than straighter sperm -- but that the spiral shape also makes them more fragile. The research was part of the ...

This paper was retracted by Science Advances on May 19, 2021, after readers identified that the described asymmetrical movement of sperm cannot be confirmed using only 3D flagellar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