They see a microscopic flash at fertilization, a burst of fluorescence that marks a sudden release of zinc from the human egg. Scientists call this burst the "zinc spark," and they now see it as a ...

It's a watershed moment for in vitro fertilization (IVF), which can be difficult and expensive. Doctors are hopeful AI can ...

Some children have already died and only a minority who inherit the mutation will escape cancer, a new report stated on ...

In an underwater nursery just off the Dominican Republic coast, tiny corals born in a laboratory are slowly growing under the ...

Michelle Spear does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Other right-wing media personalities have echoed similar themes about how environmental chemicals might affect a person’s gender and sexuality. Alex Jones, the shock-jock radio host and conspiracy ...

For the first time, scientists have cryopreserved and revived the larvae of a sea star species. The breakthrough, made with the giant pink star, gives hope the technique could be repeated to save the ...

Lots of talk about the biological clock swirls around numbers: You’re born with all the eggs you’ll ever have, and each year you lose another chunk, the decline ramping up precipitously as you reach ...

Ultrastructure expansion microscopy of murine male germ cells reveals the fine molecular structures of centrioles (shown in the enlarged image). DNA is stained in blue, and the chromosome axis in red.

The mammals' mysterious clicks contain a stunning level of complexity, a new study shows. A group of sperm whales (Physeter macrocephalus) swims together in the Indian Ocean. For years, researchers ...

WASHINGTON, Dec 4 - The U.S. will provide more than $1.6 billion to Kenya's health system under a new five-year agreement signed on Thursday, the first such agreement reached under the Trump ...