john hawks weblog

paleoanthropology, genetics and evolution

Beneath the dawn chumans

Thu, 2009-08-27 08:30 -- John Hawks

Thomas Mailund covers some recent modeling of the human-chimpanzee divergence: "Doubts about complex speciation between humans and chimpanzees". Here's the bottom line:

Voilà! No more need for a complex speciation history!

I wrote about the initial suggestion of a "complex speciation" when it came out in 2006: "The Dawn Chumans" I didn't buy it then, I don't now. This is an important issue to work out, because all our estimates of the human-chimpanzee divergence time depend on the importance of lineage-sorting in the ancestral (chuman) population.

(via Evolving Thoughts)

Neandertals

For years, I've worked on their bones. Now I'm working on their genes. Read more about the science studying these ancient people.

Denisova

From a finger bone of an ancient human came the record of a completely unexpected population. My lab is working on the science of the Denisova genome.

Acceleration

The advent of agriculture caused natural selection to speed up greatly in humans. We're uncovering some of the ways that populations have rapidly changed during the last 10,000 years.

Malapa

Just outside Johannesburg, the Malapa site is producing some of the most exciting finds in human evolution. This site is the headquarters of the Malapa Soft Tissue Project.