For sexual reproduction to yield healthy offspring, newly generated oocytes—immature egg cells—must receive the correct amount of DNA after cell division. This process of segregating chromosomes ...

Women make up 80 percent of autoimmune cases. Discover why chronic inflammation disproportionately affects women and how to ...

Humans and Neanderthals cozied up from time to time when they lived in the same areas tens of thousands of years ago. But we don’t know much about who got with whom, or why.

The Trojan male method relies on genetics to collapse invasive populations. Unlike wild males that have one X and one Y chromosome, these specially bred fish have two Y chromosomes.

Ancient DNA from Ajvide graves shows Stone Age burials often grouped extended relatives, highlighting the importance of wider ...

The point is that, biologically speaking, scientifically speaking, sex is a spectrum, and oftentimes can be very ambiguous,” Talarico said.

New research reveals that ancient interbreeding between humans and Neanderthals shaped our modern human DNA - especially on ...

Scientists at Penn measured Homo sapien DNA in the X chromosomes of male Neanderthal bones. They found 62% more sapien DNA than on other Neanderthal chromosomes. Their analysis: Male Neanderthals were ...

About 60,000 years ago, modern humans (Homo sapiens) and Neanderthals coexisted on Earth, sharing love and producing offspring. The descendants of humans who migrated from Africa to Europe and ...

When the two species got together tens of thousands of years ago, the hookups may have often involved a male Neanderthal and a female human, according to a new study. The findings, described February ...

Genetic research indicates that Neanderthal and Homor Sapiens interbreeding was socially driven to an unexpected degree.

Ancient linkups may have happened more frequently between female humans and male Neanderthals, according to a new genetic ...