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paleoanthropology, genetics and evolution

Darwin

  • White on books

    Tue, 2011-10-18 08:37 -- John Hawks

    The Browser has up an interview with paleoanthropologist Tim White, focused around his choice of five books to recommend: ("Tim White on prehistoric man"). A snippet of the interview:

    Why do you think it is so important to find out about prehistoric men and women? How can it help us?

    Well, simply to contextualise our place in nature. This is something that is of universal interest. Every culture studied by anthropologists has its own mythology of how people came about. These range from Australian aboriginal accounts to people in the Arctic, to people in the Middle East. The differences among these different myths are very great, of course, because they are all just myth. If we really want to find out where we came from, there is only one way that we can do that, and that is through the science of palaeontology. And so that is why we go out and try to get the evidence and pull that evidence together to understand what truly happened in our history and prehistory.

    He didn't recommend Human Osteology. I hope he'll consider writing a trade book someday, as it would be very interesting to see him unpack his perspective on the fossil record in a single narrative.

    (via Jerry Coyne)

  • A trip to Darwin's home

    Fri, 2011-09-23 19:13 -- John Hawks

    Today I visited Down House, Charles Darwin's home southeast of London. Mark Pallen, my gracious host from the University of Birmingham, brought us to the house, where we met Randal Keynes. Also on the trip were Brown University biologist and author Kenneth R. Miller, and Captain Ben Kirkup of the Walter Reed Army Institute of Research.

    John Hawks, Randal Keynes, Ken Miller, Mark Pallen, Ben Kirkup at Down House

    Keynes is a great-great grandson of Charles and Emma Darwin, and the author of the book, Darwin, His Daughter and Human Evolution, which became the basis for the movie, "Creation". Hearing from a true family expert on Darwin's life, family and experiments made this trip truly a once-in-a-lifetime experience for me.

    Down House, rear view from lawn

    The house is quite lovely. It sits on bedrock of chalk, and locally flint nodules are such common fieldstones that they've been built into walls -- and memorably, the church in the nearby town where the Darwins attended. The house was owned by the family until 1909, became a school for several years, and was then converted into a privately held museum. It was acquired by English Heritage in 1996.

    At the time of its restoration, family members gathered together the original furniture of the lower floor, and the museum used photographs to restore these rooms to their appearance during Charles Darwin's lifetime. Here is the drawing room:

    Drawing room at Down House

    The flowerpots on the piano recollect the experiment in which Darwin demonstrated that earthworms do not respond to sound from musical instruments (note the nearby bassoon), but do respond to vibrations in the soil (when the pots were placed upon the piano itself).

    There are several rooms on this floor. The most notable is Darwin's study:

    Charles Darwin's study at Down House

    Darwin used the single lens microscope for dissections. I wish I'd gotten a picture of the short wheeled stool that he used here. The billiard room is full of portraits, including this famous one:

    IMG_0746

    The column here is on the veranda, and as Keynes noted to us, the plant trailing up in the photograph was Virginia creeper, now planted outside and showing its beautiful autumn red color:

    Down House, columns and veranda

    The upstairs of the house contains several interpretive exhibits, including some original manuscript pages, artifacts from the Beagle and from Darwin's life at Down House, and a display remembering the death of Charles and Emma's daughter, Annie, at age 10. Adjoining the original house is a small tea room, with an outdoor patio and modern toilets.

    Like the downstairs, much of the grounds has been maintained in its appearance during Charles Darwin's life. Several of his ongoing experiments are being replicated -- a patch of unmown grass where Darwin counted species of plants; a millstone in the ground with a device for measuring the compaction of the soil by earthworms. Fresh worm castings were all over the lawn:

    Worm castings on lawn at Down House

    The kitchen garden is still planted, although in this season not especially lavish in its growth. Flanking the garden is a zoned greenhouse, with various tropical plants including a room full of carnivorous ones.

    Darwin's greenhouse and kitchen garden

    At the rear of the property runs the famous Sandwalk, where Darwin walked five laps around the gravel path on a typical day, marking his laps by nudging stones. Keynes' descriptions of the childrens' experiences with their father in the yard, some conveyed through the family, others hinted by Darwin's writings, were joyful.

    Darwin's Sandwalk, looking back toward Down House

    Tonight I am in Malvern, where Charles took both himself and his daugher Annie for the water treatments. Annie died here, and after a late supper we walked through the darkness to visit her grave in the town.

    But I'll leave remembering a happier note, with many more stories to tell than I can share here:

    John Hawks at the Sandwalk sign at Down House
    Synopsis: 
    Randal Keynes gives a small group of us a wonderful tour of Down House.
  • Darwin's Y

    Fri, 2011-04-01 08:20 -- John Hawks

    The Telegraph has done a puff piece about the Genographic testing of Charles Darwin's great-great-grandson.

    Last week I got to attend an incredible panel discussion that focused on the issue of genetic testing and identity. How and why do people connect the results of a genotyping test to their deep conception of themselves?

    The Genographic results are only Y chromosome and mtDNA, a tiny fraction of an individual's ancestry. Charles Darwin only accounts for around 6 percent of this descendant's ancestry (possibly a shade more genetically, considering the inbreeding). The Y chromosome is not the seat of the soul. And yet:

    Mr Darwin, whose great-grandfather was Darwin's astronomer son George, said the test showed that the desire for knowledge and thirst for discovery was in his genetic makeup.

    "I was always a bit concerned that I hadn't inherited Charles Darwin's scientific abilities, but I hoped I had inherited his adventurous abilities, his desire to go over the hill and see what was on the other side," he said.

    Interesting how people construct a story about the connection between genes and identity, isn't it?

  • UW Darwin Day activities

    Wed, 2011-02-09 08:05 -- John Hawks

    The rest of this week is Darwin Day here at the University of Wisconsin. I have a bunch of local readers, and I want to make sure the word is out about all the activities, Thursday through Saturday. Most of the action happens at the brand-new Wisconsin Institute for Discovery, which gives you another reason to come check it out!

    We have some incredible speakers coming for these events. And then, there's me, talking on Saturday about Neandertal genetics. In case you're interested in that kind of thing...

    From our press release:

    We start Thursday by hosting high school and middle school teachers for a workshop regarding tools for teaching human evolution. At noon, Alan Love, University of Minnesota, will present a talk entitled, "Darwin's Functional Reasoning, Homology, and the Structure(s) of Evolutionary Theory." Then we will listen to four short talks with discussions on evolutionary phenomena related to humans, followed that evening by a showing of the 2009 film Creation: The True Story of Charles Darwin. UW-Madison History of Science Professors Lynn Nyhart and Ron Numbers , along with Alan Love, will lead a panel discussion on the movie.

    Friday evening, we will have a short reception before Jill Pruetz gives the keynote talk on savanna chimpanzees. Dr. Pruetz has worked with chimps and discovered that they not only make tools (spears), but they carry them into battle. She has won numerous awards for her work and has been featured in National Geographic as a rising scientist.

    On Saturday, we will host a variety of interactive exhibits, including our multifaceted Tree of Life. The Tree is especially designed for children of all ages. In addition, John Hawks, UW-Madison, will give us insights into Neanderthals and their genomes. Karen Rosenberg, University of Delaware, will follow with a discussion of the evolution of the human birth process. We wrap it all up with a panel discussion.

    Thursday, February 10, 2011

    • 8:00 am Teacher's Workshop. Presentation by Kristin Jenkins, NESCent and UW-Anthropology colleagues
    • 12:00 Alan Love, U Minnesota "Darwin's Functional Reasoning, Homology, and the Structure(s) of Evolutionary Theory"
    • 1:30-4:30 pm Outreach Symposium featuring Ryan Haasl (UW-Genetics) Eve Emshwiller (UW-Botany), Karen Steudel (UW-Zoology), Elliot Sober (UW-Philosophy)
    • 7:00-10:00 pm Creation: The True Story of Charles Darwin. Film showing in Wisconsin Union Play Circle Theatre Followed by Discussion with Lynn Nyhart and Ronald Numbers (History of Science) and Alan Love (UMinn)

    Friday, February 11, 2011

    • 6:30 pm Reception
    • 7:00 pm Keynote Lecture: Jill Pruetz, Iowa State University "Ecology and behavior of Savanna Chimpanzees at Fongoli, Senegal"

    Saturday, February 12, 2011

    • 9 am-2 pm Tree of Life activities
    • 10:30 am John Hawks, UW-Madison Anthropology "Neanderthal genomes: Meet Your Inner Caveman"
    • 12:30 pm Karen Rosenberg, University of Delaware "The Evolution of the Human Birth Process"
    • 1:30 pm Wrap-up Panel Discussion with speakers
  • Mailbag: Hiding balls

    Fri, 2010-09-10 09:57 -- John Hawks

    Re: "Darwin hides the ball":

    Just catching up on blog reading after summer holidays and came across your posting: Darwin Hides the Ball. For balance I suggest you read and post on the this article from my friend John van Wyhe:

    http://darwin-online.org.uk/pdf/2007_MindtheGap_A544.pdf

    Thanks for forwarding that reference. Darwin's quote itself doesn't imply he delayed for twenty years, but van Wyhe is quite correct that the later epigraphers make much out of it!

  • Quote: Darwin hides the ball

    Tue, 2010-08-03 08:30 -- John Hawks

    Darwin, writing in his Autobiography about natural selection:

    In October, 1838, that is, 15 months after I had begun my systematic enquiry, … it at once struck me that under these circumstances [struggle for existence, as in Malthus] favorable variations would tend to be preserved, and unfavorable ones to be destroyed … Here then I had at last got a theory by which to work; but I was so anxious to avoid prejudice, that I determined not for some time to write even the briefest sketch of it”

  • MythBusters Evolution

    Thu, 2010-07-22 00:28 -- John Hawks

    A rerun MythBusters tonight was a rejiggering of myths they'd already covered, titled "MythBusters Evolution". Here's how they started:

    JAMIE: So, MythBusters Evolution...does that mean we're going to be testing myths about evolution?

    ADAM: No, Darwin doesn't need any help.

    Good for them! Of course, the MythBusters are well-known for taking on myths from the Darwin Awards...

    Tags: 
  • Creation review

    Mon, 2010-07-19 19:31 -- John Hawks

    John Wilkins saw the film Creation and enters a review, which I link because it's thoughtful and balanced:

    I am very pleasantly surprised how well it worked as a film, as well as how effectively it represented the era. My quibbles are just that, quibbles. Mostly, the history was good (despite the famous tree diagram being shown as a sheet and not a page in the Notebooks), but the overall dramatic themes are just wrong.

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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.