john hawks weblog

paleoanthropology, genetics and evolution

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  • Quote of the day

    Mon, 2007-01-22 00:13 -- John Hawks

    J. B. S. Haldane, first line of "A mathematical theory of natural and artificial selection" (1924, Trans Camb Phil Soc 23:19-41):

    A satisfactory theory of natural selection must be quantitative.

  • Why don't they get it over with and domesticate them?

    Wed, 2007-01-03 11:16 -- John Hawks

    Pandas, of course. This article about the exceptional 2006 panda birth rate (217) is acccompanied by a photo of a half dozen flopping panda cubs in a pile. So CUUUUTE!

    Bleaaah!

    The fertility of captive giant pandas is even lower because they do not move much, experts said.

    I mean, these animals are bent on extinction! Get this:

    The animals' diet consists almost entirely of bamboo, but they will eat only about 20 of the 200 or so species that grow in Georgia. What type they like also varies by the time of year. Sometimes the pandas will eat nothing but one variety for a week, then refuse to eat it anymore. (Sound familiar, parents?)

    Clearly, this is why parents with large families die younger! Their children are picky as pandas.

    Tags: 
  • Quote of the day

    Tue, 2007-01-02 12:41 -- John Hawks

    Ann Althouse, deep in the comments wrapping a One Flew Over the Cuckoo's Nest metaphor:

    Academia is, apparently, a mad house, and this blog is my bus ride and fishing expedition.

  • Quote of the day

    Mon, 2006-12-18 17:23 -- John Hawks

    G. Ledyard Stebbins, on p. 241 of "The role of hybridization in evolution," Proceedings of the American Philosophical Society 103:231-251, 1959:

    We inevitably reach the conclusion, therefore, that introgressive genotypes not only persist indefinitely, but that also, like polyploids, they can migrate far beyond the areas in which they originated, and can actually survive after the non-introgressed parental species has become extinct.

    (quoted in our own paper, "Dynamics of adaptive introgression from archaic to modern humans," available as free full text):

  • A worst toys retrospective

    Sat, 2006-12-16 10:18 -- John Hawks

    In honor of the season, I ran across Radar Magazine's list of 10 dangerous toys from years gone by.

    Lawn darts were massive weighted spears. You threw them. They stuck where they landed. If they happened to land in your skull, well, then you should have moved.

    Some of the best parts are the comments, where people who actually had the toys have been sounding off. The folks who actually had the "Atomic Energy Lab" as kids are the best!

    Here's more:

    Some kids had belt buckles. Others had cap guns. Only the lucky ones had the Bat Masterson Derringer Belt Gun, a two-in-one combo that took care of all your pants-securing needs with the option every ten-year-old dreams of: the ability to shoot caps at groin level.

    The whole thing is in questionable taste, which might be just what you need on a December morning.

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  • Quote of the day

    Thu, 2006-12-14 12:26 -- John Hawks

    New York Times corrections column, on July 17, 1969 (a day after the Apollo 11 launch), referring to a 1920 column that claimed Robert Goddard's rockets could not possibly operate in space:

    Further investigation and experimentation have confirmed the findings of Isaac Newton in the 17th century and it is now definitely established that a rocket can function in a vacuum as well as in an atmosphere. The Times regrets the error.

    (from Wikipedia)

    Also, from the original 1920 unsigned editorial, this nugget of wisdom:

    To claim that it would be [able to operate in a vacuum] is to deny a fundamental law of dynamics, and only Dr. Einstein and his chosen dozen, so few and fit, are licensed to do that.

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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.