john hawks weblog

paleoanthropology, genetics and evolution

Arsenate redux

Thu, 2010-12-09 22:45 -- John Hawks

I wrote a short post about the arsenate-bacteria story last weekend; in the meantime the story has developed. Carl Zimmer ran a long story early this week, reflecting many scientists' criticisms of the work and the response of the authors:

"Any discourse will have to be peer-reviewed in the same manner as our paper was, and go through a vetting process so that all discussion is properly moderated," wrote Felisa Wolfe-Simon of the NASA Astrobiology Institute. "The items you are presenting do not represent the proper way to engage in a scientific discourse and we will not respond in this manner."

Zimmer documents the on-the-record comments by experts on his blog. This is a nice piece of reporting, it's impressive the number of people from whom he has thoughtful comments.

I like Bora Zivkovic's analogy:

I love all the parallels between #wikileaks and #arseniclife, especially in how the power-structure position influences views of critics and supporters… When comparing #wikileaks and #arseniclife it is important to compare the attitudes of the MSM – does it align with the rock (state, government, institutions, traditional hierarchy and power-structure, top-down control) or the hard-place (people formerly known as audience, including people with greater expertise on the topic than journalists, bottom-up control, democratization of information, freedom of information)?

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.