Add Yahoo as a preferred source to see more of our stories on Google. This microscope image provided by Osaka University and the Research Institute of Molecular Pathology in October 2024, shows the ...

It's a commonly held belief: Sperm cells are like runners in an epic race, competing against each other for access to the coveted egg at the finish line. The egg, in turn, waits patiently for the ...

An international team of researchers has discovered a fundamental protein in human fertilization, called MAIA, which could lead to an improved understanding of infertility. For fertilization to be ...

A Japanese research group has determined the crystal structure of the JUNO protein, an egg surface protein essential for fertilization. These structure-based mutational analyses elucidated a mechanism ...

After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional sperm and the ensuing death of the embryo, a new study finds. The work ...

June 21 (UPI) --For every animal, sperm perform the same function -- egg fertilization. Yet sperm size varies dramatically from species to species. Most studies on the topic have focused on how sperm ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. How a sperm and an egg fuse together has ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...