This microscope image provided by Osaka University and the Research Institute of Molecular Pathology in October 2024, shows the fertilization of a mouse egg marked in red and green. DNA is marked in ...

After 18 years of infertility, a couple could finally have a baby thanks to artificial intelligence. The father had a rare condition that left him with almost no detectable sperm. Then fertility ...

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 ...

Sperm have to wiggle vigorously to reach an egg, and that motion is key to a clever new fertility test. The technique, tested with bull semen and detailed in Advanced Materials Interfaces, harnesses ...

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) ...