Researchers 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. In addition to eggs, tissue cysts present in the meat of warm-blooded animals can spread toxoplasmosis as well if they are not ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) More than 1,200 Bridgeport high school seniors celebrated graduation Friday during a ...

LONDON -- British scientists claimed Wednesday to have created human sperm from embryonic stem cells for the first time, an accomplishment they say may someday help infertile men father children. The ...

Sperm whales are the largest toothed predators on Earth and among the deepest divers in the animal kingdom. These giants ...

A team of researchers has found microplastics in all 40 semen samples they examined from healthy men, highlighting the urgent need to study how these tiny particles could affect human reproduction. In ...

According to research from a team at the University of Utah Health and the University of Nevada, Reno School of Medicine, while fatherhood at an older age is becoming increasingly normalized due to ...

Are human sperm counts crashing? Despite numerous careful analyses indicating falling numbers, opposing reports still appear occasionally and doubts persist. Accumulated evidence has revealed that the ...

Scientists have detected microplastics — the tiny and pervasive fragments now found in our seas, drinking water, food and, increasingly, living tissue — in human semen and follicular fluid, according ...

Add Yahoo as a preferred source to see more of our stories on Google. I am a microbiologist, and my lab studies Toxoplasma. This new study bolsters emerging findings that underscore the importance of ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) I am a microbiologist, and my lab studies Toxoplasma. This new study bolsters emerging ...