Skip to content


Members Public

Tracing the signature of African-to-Neandertal gene flow

A new study of African genetic variation yields a more accurate picture of the genetic exchanges between ancient Africans and Neandertals 250,000 years ago.

DNA with chains of bubbles rising from it in a fluid
Members Public

Explaining the X chromosome hole in Neandertal ancestry

Natural selection reduced the variation on human X chromosomes in populations with the most Neandertal and Denisovan mixture. It may have been meiotic drive.

A fluorescence image of chromosomes in cells undergoing meiosis
Members Public

Solving the mystery of the Red Deer Cave people

New DNA evidence is revealing the genetic relationships of ancient groups from southern China, showing how they were connected to living people across the region.

Two reconstructed partial skulls side by side representing the Red Deer Cave people
Members Public

Fossil profile: Skhūl 1 and the mixing of populations

A child's skull from Mount Carmel gives an occasion to look at the history of ideas about population mixture.

Skhūl 1 calvaria with information
Members Public

Ancient genetic introgression between cave hyenas and spotted hyenas

Describing the results of genomic work by Michael Westbury and collaborators, including ancient hyena genomes from Eurasia and North America.

Spotted hyena on a dark background
Members Public

Neandertals got 6% of their genomes from Africa

An analysis by Melissa Hubisz and coworkers finds that mtDNA is not all that Neandertals received from our African ancestors

A Banksy-style portrait of a Neandertal wearing a blazer
Members Public

How much have baboons and geladas hybridized during their evolution?

Examining a paper that uses Alu insertions as a probe for ancient reticulation in the papionin tree of relationships.

Members Public

A mid-century observer wrote about hybridization and Neandertals

A quote from Loren Eiseley, one of the best known writers about anthropology and human origins.

Members Public

Should we be surprised if Neandertals, Denisovans, and modern humans didn’t form stable hybrid zones?

A geneticist asks why we don't see more persisting hybrid populations, and I find an answer in the theory of population source-sink dynamics.

A Neandertal artist's reconstruction at the Neanderthal Museum, wearing a suit and holding a stone tool.
Members Public

How much sex did it take for Neandertal DNA to enter modern populations?

Addressing a widespread misconception about what geneticists are really measuring when they look at population mixture.

A painting of the biblical figures Jacob and Esau