john hawks weblog

paleoanthropology, genetics and evolution

art in science

  • Kids leave their traces in caves with art

    Sun, 2011-10-09 09:34 -- John Hawks

    Several stories last week related the story (from a conference talk by Jessica Cooney) about evidence that very young children had left finger grooves in the Grotte de Rouffignac. Alan Boyle's gives the most details: "Prehistoric kids left marks in caves".

    Like Lascaux, the 5-mile (8-kilometer) Rouffignac cave network has plenty of drawings, depicting mammoths, rhinoceroses, horses and even a cave bear. But Cooney focuses on a different kind of art: impressions left behind in clay or "moonmilk" — a soft, white, crystalline precipitate that forms inside limestone caves. The ancient artists created the impressions by pressing or dragging their fingers through the soft material on the cave walls. Those markings are what Cooney and her research colleague, Walden University's Leslie Van Gelder, used to estimate how old the artists were.

    Rouffignac is an immense cave network. The main tourist route into the cave involves riding on an electric train for nearly a kilometer into the hillside. One problem posed by the cave is that tourists have been coming into it for hundreds of years -- there is graffiti dating to the 18th century on the ceiling near some of the most famous artwork. But it is an amazing place, in part for that long history of people interacting with the very ancient art.

    Dale Guthrie's wonderful book, The Nature of Paleolithic Art, discusses the idea that children and adolescents were involved in making much of the classic "cave art" in Europe. The famous paintings and engravings with high levels of technical execution are really exceptional, and are usually surrounded or accompanied by vastly more numerous, cruder, representations. Many of those can be analogized to art created by children today, some of them actually occur in areas where children are the most likely artists. And already we know about children's footprints in some caves, and handprint-negatives sized for young people.

  • Sign your stuff

    Mon, 2011-09-12 10:30 -- John Hawks

    From science illustrator Kalliopi Monoyios: "3 Marketing Mistakes Young Illustrators Make". Important: sign your work.

    Think of every illustration you make as a potential marketing tool for your next great gig. If someone is moved by your work, they will want to find you. Give them a search term that will be sure to lead them to you instantly: your full name. Heck, these days it almost makes sense to save them a step and sign with your website URL.

    A lot of this advice can be generalized. You never know when a piece of your work may get unexpected attention and cause people to look you up. If you haven't got a contact, they won't find you.

  • The effectiveness of drawing

    Thu, 2011-09-01 22:44 -- John Hawks

    From Tom Benthin, Graphic Facilitator: "Rough and Hand-drawn: Alive and Inviting".

    I’ll start by saying that I believe that drawings that are hand-made and loosely or roughly drawn engage us more, drawing us into the process of animating what we’re viewing. By “animating” I mean the way we bring a drawing to life in our mind.

    Some examples at the link, drawing from the classics of animation. It is a lot of work to develop a distinctive simple look with characters for lecture visuals, but the personal touch can add immeasurably to people's engagement with the material.

  • Shall we bring science to the humanities?

    Thu, 2011-09-01 14:24 -- John Hawks

    In reaction to a speech by Google CEO Eric Schmidt, calling upon Britons to combine science with their art and humanities, the Guardian commissioned an essay by Timothy Stanley: "Science must embrace the humanities to regain its Victorian glory". He gives a raft of reasons why the naive blend of science and art of the Victorian era isn't coming back anytime soon.

    Whereas the Victorians strove outwards into the realms of nature and the supernatural, modern research has turned inwards to the atom and the molecule. Schmidt might not believe it, but computer programming is not nearly as interesting as fairy hunting.

    He leaves without suggesting a strategy for changing things in today's world of science and technology. I think some small steps would be useful: for example, why not assign the science-informed essayists and novelists in secondary humanities curricula?

  • Photo: Abbe Breuil

    Fri, 2011-08-26 19:31 -- John Hawks
    abbe-henri-breuil-osborn-1911-fig-204

    L'Abbé Henri Breuil is pictured, center with the cane. This photo is from Men of the Old Stone Age, by Henry Fairfield Osborn, publication date 1915. L'Abbé Breuil, known as the first archaeological expert of Paleolithic art, was one of a number of scientists who hosted Osborn on a tour of southern France and Cantabria. The book draws heavily on Osborn's exposure to the record in this area.

  • Shoehorning science into art

    Sun, 2011-08-21 19:23 -- John Hawks

    The Guardian today ran an interesting article giving several examples of artists collaborating with scientists...to make art "When two tribes meet: collaborations between artists and scientists".

    It was a radical departure for portraiture. Certainly few sitters contribute, as Sulston did, a sample of DNA from his sperm. That sample was cut into segments and treated so they could be replicated in bacteria. The bacteria was spread on agar jelly and placed under glass, forming a portrait about A4 size. "Some say it's an abstract portrait, but I say it's the most realistic portrait in the National Portrait Gallery," says Quinn. "It carries the instructions that led to John and shows his ancestry back to the beginning of the universe."

    "Well, yes," says Sulston, "but DNA gives the instructions for making a baby, not an adult. There's a lot more to me than DNA."

    The examples aren't especially very inspiring as art. And they seem to be exclusively one-way: the scientists aren't getting much from the artists in these cases. It all seems forced.

    I find art tremendously inspiring to my science, but my sense is that art that is useful in this way doesn't get much appreciation in the art community.

  • Death and the anthropologist

    Thu, 2011-05-26 17:09 -- John Hawks

    Sunday's travel theme here in Rome was death.

    OK, for an anthropologist you have to imagine this is more cheerful than it sounds.

    After walking the flea market at Porta Portese, I ran to the gate of the old Protestant Cemetery to get there before it closed. Back in the days when the entire city was ruled by the Popes, non-Catholics were forbidden to be buried on sacred ground. Foreigners who died in Rome were brought to be buried here near the city's outskirts. By the nineteenth century, this spot near the pyramid had become a formal graveyard.

    Oh, did I mention a pyramid?

    The pyramid of Rome, from inside the Protestant Cemetery

    It's the Pyramid of Cestius, built as a tomb in the first century B.C. Later builders integrated it into the city wall, and here it is in the border to the Protestant Cemetery.

    I arrived there a minute after the gate closed. Rats!

    My strategy in such a situation is to stand around with a pleasant look on my face. It soon paid off. The caretaker seemed a pleasant young man who looked about like what you'd expect a twentysomething poetry student to look, and he invited me in for a few minutes.

    So I went inside and gravely met the stones.

    Headstone of John Keats

    John Keats died in Rome in 1821 at the age of 25. He had gone there for the climate, hoped to relieve his suffering from tuberculosis, which had stricken him severely the previous year. His entire family, mother, brothers and sister, were drained by the disease. A life of such tragedy, orphaned by disease, nursing the final year of his teenage younger brother's life, then bled and starved by quack doctors. He loved a young woman, and she loved him, but he had no prospects, no money, and he fell ill. His letters to her survive, half a dialogue after he willed her side to be destroyed. Keats' life ended in a house next to the Spanish Steps, and his friend Joseph Severn, who had accompanied him to Rome, brought him to this cemetery. The verse on the stone refers to the negative reviews his volumes of poetry had received. He was recognized in his life only by friends, other artists -- Byron, Shelley.

    Yet the sweet converse of an innocent mind,
    Whose words are images of thoughts refined,
    Is my soul's pleasure;

    Severn later buried a baby son here by Keats, a boy who died in a crib accident. Strange how those still happen today, while the deathly force of tuberculosis, which killed so many more, has been so greatly reduced by antibiotics. Then Severn himself was placed here. The guidebooks never seem to explain the connection with the baby, but it's clear that much of Severn's heart must have stayed here. The site is no more than fifty feet from a busy bus line, but peaceful behind a high wall.

    IMG_0216

    As time was rapidly running out on my visit, I clipped through the cemetery to find Shelley's stone, under a ruin of a tower in the city wall. Shelley died in a boating accident, also before his time. Then a donation for the caretaking, and another coin for the cats, and out on my way.

    A metro ride across the city is the National Etruscan Museum, in the Villa Giulia. This is quite an amazing place. Two large floors packed with artifacts, countless Etruscan and Greek ceramic pieces, some incredible bronzes and terra cotta sculptures, and a recreation of the facade of a temple.

    The Etruscans are often called "enigmatic" or "mysterious". The truth is we know quite a lot about them -- really more than any other contemporary group in the area except the Romans and Greeks. They spoke a non-Indo-European language, but wrote with a Greek script borrowed from Euboea. So we can read their inscriptions, and know the meanings of most of them. The problem is that they're mostly funerary in nature. The Etruscans are an entire people whose lives are known to us by the manners of their deaths and burials.

    Etruscan sarcophagus of "the Married Couple"

    Perhaps the most famous Etruscan sarcophagus, of terra cotta. Photo by Small, on Flickr. Creative Commons.

    So much Etruscan pottery has been recovered that it is possible to trace the styles of individual painters. But we know the names of only a handful. Most are known by pseudonyms such as the "Priam painter", generally after a theme or a necropolis where their work is found. A tear came to my eye as I read what was known about an apprentice of one of the master painters, whose urn was used to hold the remains of a young woman cremated with a dove.

    IMG_0298

    Well, this is kind of random, but it's the only picture I took inside the (no photos allowed) museum. I just really liked that terra cotta head. The mouth was perfectly sculpted.

    It is not the distance of time that touches me about these people. I study bones that are tens or hundreds of thousands of years old, distances so vast as to be unimaginable in human terms. Yet the bone persists. The individual is marked in it, and touching her bones creates an immediacy of connection, like traveling through time.

    It is not the distance of time that affects me. It is the anonymity, the artistry denied a name. No different from the painters of Chauvet or Altamira -- but the Etruscans lie less than a tenth the distance in time. But then I think of young Keats, less than a tenth the distance to the Etruscans, who willed himself an anonymous stone, marked only with, "Here lies one whose name was writ in water." A name is an eddy in the river of time.

    After I passed a nice afternoon in the museum, I hopped back on the Metro to Piazza Barberini. This piazza has a small fountain in the corner, adorned with bees.

    IMG_0234

    I think this must be symbolic of something, but I'm afraid to find out what.

    Just past the fountain is the church of Santa Maria della Concezione dei Cappuccini. Beneath the church, but a climb of steps above the street, is the famous Capuchin Crypt. In a few rooms are the bones of many hundreds of brothers of the Capuchin order. These bones were disinterred and arranged as a kind of contemplative art upon the walls of the crypt.

    L1060860

    In the Capuchin Crypt, photo by Darren and Brad on Flickr. Creative Commons. No pictures were allowed in there, either, but several Flickr users seem not to have heeded the signs. Thanks, Creative Commons!

    There are six rooms here open to the public, five of them with different vignettes of bones or, in a few cases, mummified remains. The final room of the crypt has the usual bony ornamentation, in addition to the complete mounted skeletons of three children. This is where I encountered any anthropologist's nemesis: A blowhard who thinks he's some kind of forensics expert because watched one too many episodes of "Bones", or whatever the British equivalent may be. This guy's nonsense was clearly audible throughout the entire crypt, as he pontificated to an appreciative klatch of clucking hens.

    "It must be a dwarf," he said. "Look how small the pelvis is. Yes, certainly some kind of dwarf."

    Capuchin Crypt

    Picture credit: weesmalldoll on Flickr. Creative Commons. Yes, that's a kid's skeleton gussied up as a floating grim reaper.

    I don't usually make it my business to correct Cliff Clavin types, but his voice just carried through all six chambers. "No," I quietly said, "it's a child's skeleton."

    "How do you reckon that?"

    "I'm an anthropologist. It's not my first crypt."

    The floating grim reaper had two little friends at the far end of the chamber, all three children of a noble family that had been entrusted to the friars after their deaths.

    IMG_0917

    Hundreds of hip bones. Photo by sammyjo5999a on Flickr. Creative Commons

    The five rooms of the crypt with bones also have dirt floors with obvious burial mounds in them. The dirt was reputed to have been brought from Jerusalem when the Capuchin order occupied the church, but I figure by now decayed human flesh must be the majority component. Even so, there's nowhere near enough graveyard in this crypt to have supplied the bones. Most of them arrived by cartloads from the original medieval home of these Capuchin friars. That may explain the curious shortage of finger and toe bones in the decorations. I mean, seriously, there must have been thousands of hip bones (every human has two) but remarkably few phalanges (most people have 56). Oooh -- and I saw hundreds of atlas vertebrae (every human has one), but I don't recall a single hyoid (every human has one). An interesting case of taphonomy.

    I spent a good long time in each of the rooms. These monks may not have joyfully embraced death, but they used their devotions to remove some of its sting. I was interested to see the number of long bones that still had visible epiphysial lines, an indication that some of the brothers had died in their teens or very early twenties. Not surprising in a medieval context, a reminder of the ever-present possibility of death in these communities.

    Keats lived those final months a short walk from the Capuchin friars who tended this church and crypt.

    By the time I left, the sunny day that started at the cemetery gate had turned to rain. So I popped on my headphones and caught the bus back to my home base to get some work done.

    Synopsis: 
    I visit Keats' grave, the Villa Giulia and the Capuchin Crypt
  • Weidenreich and the Hittite Goddess

    Wed, 2011-03-16 17:13 -- John Hawks

    By chance I ran across an 2009 post by Rachel Martin of NYU Museum Studies, which investigates a mystery related to one of my scientific heroes, Franz Weidenreich ("A Hittite Goddess and Theories of Race):

    In the archives of the American Museum of Natural History, there is a lantern slide. It shows a head carved in stone from an archaeological excavation. This image presented me with several mysteries. I not only had to identify the subject, but also the reason why the slide was at AMNH. When I first saw the slide and its box, I thought the image had been used in eugenics lectures. Now, however, I believe the reverse is true. The slide’s owner was actually a strong opponent of eugenics. I believe that he used the slide in lectures arguing against the practice of eugenics in anthropological research.

    She doesn't have an answer at the end, but I bet there's a story here someone could uncover more fully.

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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.