Researchers say they may have finally discovered the key genetic change that enabled all of modern human speech.

A new H5N1 bird flu mutation has appeared in a cluster of infected dairy cows. It's a genetic change that scientists say ...

Robert F. Kennedy Jr. addressed the worsening avian flu crisis, saying vaccinating birds turns them into “mutation factories.

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

A vaccine's ability to generate long-lasting, high-affinity antibodies hinges on a delicate balance. Upon exposure to a ...

Recent research shows the bird flu virus may be just a few mutations away from transmitting more readily to humans, which could elevate risk. If you haven’t yet been sick this winter ...

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe.

"Our history is far richer and more complex than we imagined," said human evolutionary geneticist Aylwyn Scally.

Scientists say a concerning genetic mutation has appeared in H5N1 bird flu infected cats living in a New Jersey suburb of New ...

Scientists have uncovered evidence that modern humans emerged from two long-separated ancestral groups, not just one. This ...