UCLA graduate student Jeffrey Riffell and UCLA biology professor Richard Zimmer report the first experimental test on the role of small-scale physics as it influences the interactions between sperm ...

Re “When are the souls handed out?” Opinion, July 18 David Barash provides convincing scientific details that reveal there is no one moment of conception. Conception is a process. So maybe the ...

No one ever plans to struggle with infertility. But, for those having trouble conceiving, it's a good idea to talk to a doctor about next steps. That may include undergoing assisted reproductive ...

More than three months after suffering from mild COVID infection, men have lower sperm concentrations and fewer sperm that are able to swim, according to new findings presented at the 39th annual ...