john hawks weblog

paleoanthropology, genetics and evolution

New CT study: LB1 "nearly identical" to microcephalic

Thu, 2005-10-13 10:20 -- John Hawks

I have in my e-mail a new article from ABC Science (Australia) that starts this way:

The controversy over whether the hobbit is just a sick member of the human race has flared up again, this time in the pages of a prestigious scientific journal.

Dr Jochen Weber of the Department of Neurosurgery at Leopoldina Hospital in Germany and team report they have found a tiny human brain that looks like a hobbit's.

Their study, to be published in the journal Science, looked at the brain casts of 19 humans with microcephaly, an illness that causes a small brain.

They disagree with an earlier study of brain casts, by Professor Dean Falk of Florida State University in the US and team, which ruled out the hobbit brain as being that of a microcephalic.

Later, there is this:

The researchers also picked out one particular microcephalic specimen with a capacity of 415 cubic centimetres and found it was "nearly identical" to the hobbit's brain, based on six dimensions or "diagnostic indices".

The researchers also cite other evidence that the microcephalic brain is comparable to that of early hominids and conclude that it is not possible to rule out the hobbit was a microcephalic human.

From the detail of the article, as well as the critical commentary by Dean Falk and Mike Morwood, it appears that this will be in Science this week. If so, I'll certainly report more later.

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.