New research has revealed that the children of Kathleen Folbigg each had genetic mutations that could explain ... the media nicknamed Folbigg "Australia's worst female serial killer." ...

Since the worst mutations are quickly eliminated—dead viruses do not replicate—selection would, in this case, more effectively curtail further fitness decline in low-fitness populations.

While it may still take a constellation of mutations to create the worst forms of microcephaly, this one shines brightest. This answers a big question scientists have been wrestling with since ...

It wasn't supposed to happen this way. Early in the pandemic, most experts closely studying COVID-19 mutations downplayed the notion that variants would cause such serious problems. "They don't ...

Laboratory studies of mutations circulating in South Africa suggest they may dodge some of the body’s immune responses. By Apoorva Mandavilli The steady drumbeat of reports about new variants of ...

California’s strongest summer COVID wave in years is still surging, and an unusual midsummer mutation may be partly to blame. There are a number of possible culprits behind the worst summer ...

So far, the new variant has been called B.1.621. There now are about 1,500 known cases of the lambda virus mutation in the United States, Poland told WPIX. ‘Nothing like I’ve ever seen ...

Wild animals have free range around northern Ukraine’s Chernobyl nuclear plant, the site of the world’s worst nuclear accident ... to which radiation causes mutations in various species ...