Do they have mutations that they’ve gained that enable them to survive and reproduce successfully in this area? asked Elaine ...

According to Giorgio Manzi, an anthropologist from Sapienza University of Rome, “The gap in the African and Eurasian fossil records can be explained by this bottleneck in the Early Stone Age.” The ...

Neanderthal genetic diversity dropped 110,000 years ago CT scans of inner ear bones show a major bottleneck event Reduced diversity may have weakened their survival chances ...

This study presents a useful modification of a standard model of genetic drift by incorporating variance in offspring numbers, claiming to address several paradoxes in molecular evolution. It is ...

A study of the inner ear bones of Neanderthals shows a significant loss of diversity in their shape around 110,000 years ago, suggesting a genetic bottleneck that contributed to Neanderthals' decline.

The effect of genetic drift is greater in small populations. There are two key mechanisms that may accelerate genetic drift, bottleneck effects and founder effects Immigrants can introduce new genetic ...

The relative role of drift is commonly overlooked or ignored in speciation,” Black said. He noted that factors like small populations, geographic isolation and the harsh desert ecosystem that produced ...

He noted that factors like small populations, geographic isolation and the harsh desert ecosystem that produced population bottlenecks favored genetic drift over natural selection in these pupfish ...

A novel genomic analysis technique has helped reveal the reasons for a ‘bottleneck’ in the growth ... therefore, loss of genetic diversity. Giorgio Manzi, an anthropologist at Sapienza ...