While fish may lead the way in this line of research, sperm morphology plays a crucial role in mammalian and human ...

A new study suggests that human sperm cells defy Newton’s third law by using a unique motion to swim through thick fluids ...

In swimming mode one, the head of the mammalian sperm cell swings back and forth more than it does in swimming mode two. In swimming mode two, the wave-shaped beating of the flagellum is stronger ...

STAR, a new AI fertility tool developed by Dr. Zev Williams, has helped a couple who struggled to conceive for 18 years get pregnant.

She described the sperm protein bundle as a kind of key, which fits with a lock on an egg cell. In fish, that lock is a protein named Bouncer — appropriately, as the sperm head can’t enter the ...

R esearchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...

A new study shows that lab-grown sperm cells can be derived from stem cells. July 9, 2009 — -- The face of infertility-- in literature, in the media, in advocacy groups -- is so predominantly ...

They observed the pattern of electric charges that are distinctive to CatSper’s activation in individual mice sperm cells. There were clear spikes when the temperature surrounding the cell went ...