loom | April 25, 2007Among the many obligations keeping me away from the blog is the nearly-completed overhaul of my web site, carlzimmer.com. Along with information on my books and talks, the site also has an archive of the past few years of my articles. I've made my way back to 2001, and I am continuing to push back further. It's a strange experience to look back over many dozens of stories that all seemed rather cutting-edge at the time. In some cases, they've been outstripped so starkly by later research that they seem almost like time capsules now. In other cases, further research hasn't really pushed the…
loom | April 17, 2007It's getting harder and harder to remember what it was like to write about science in the pre-Web 2.0 days. Back then (i.e., 2004), I'd come across an intriguing paper, I'd interview the authors, I'd get comments--supportive or nasty--from other experts in the field, and then publish an article distilling everything I'd learned. It would take months or years for the authors to follow up on their work or for other scientists to publish their own papers attacking or supporting the original research.
How quaint. Let's take a look at an experience I had yesterday. I was reading a blog called The…
loom | April 12, 2007Trace your genealogy back 25 million years, and you'll meet long-tailed monkey-like primates living in trees. Those primates were not just the ancestors of ourselves, but of all the other apes--chimpanzees, bonobos, gorillas, orangutans, and gibbons--along with the monkeys of the Eastern Hemisphere, such as baboons and langurs. By comparing ourselves to these other primates, scientists can get clues to our evolution over the past 25 million years. Until now, most of those clues have come from fossils and studies on the behavior and physiology of apes and monkeys. But in the past few years…
loom | April 6, 2007At the end of February I joined John Rennie, editor in chief of Scientific American, to talk to students at the New York University journalism program about blogging about science. There's a post about the talk now up, including some podcast excerpts, on the the Scienceline blog from the NYU Science Health and Environmental Reporting Program. More here.
loom | April 6, 2007Check this out. An international team of climate experts has been looking into the impact of climate on ecosystems, food production, and other aspects of the natural and human-controlled world. They've just come out with the executive summary of their contribution to the Intergovernmental Panel on Climate Change's fourth assessment report. Heavy rains likely in some places, heat waves in others. Some parts of the world may enjoy a better climate for producing food, but for how long is unclear. Other places face serious threats to food.
They consider the threat of extinction (which I've…
loom | April 5, 2007I've just spent part of this evening pondering a commentary in the new issue of the journal Science by fellow Sciencebloggers Chris Mooney and Matt Nisbet called "Framing Science." (The paper is behind a firewall--yeck--but Matt has expounded on similar notes here.) They argue that scientists make a mistake of just trying to dump technical complexities on the public. They should be defining hot-button issues such as stem cells or global warming so as to resonate with "core values."
As a science writer who doesn't deal much in political reporting, I'm with them--but only up to a point, as far…
loom | April 3, 2007Reports are coming out this morning on a new study on one of the Loom's favorite organisms: Toxoplasma gondii, the single-celled parasite that lives in roughly half of all people on Earth and has the ability to alter the behavior of its host. I reported on the research last June in the New York Times, when the Stanford researchers reported their results at a scientific conference. It's nice to finally get the results on paper, though.
The study is a fine example of an underappreciated part of science: replication. In 2000 British researchers carried out a study in which they put healthy and…
loom | April 2, 2007You may have read not long ago about birds that can plan for the future. The occasion was a paper that came out in the journal Nature detailing some experiments on scrub jays. I found the paper fascinating, not just for the results themselves, but for the many other studies on mental time travel that are going on these days dealing with other animals--rats, pigeons, monkeys, and us. Instead of simply reporting on one experiment, I took some extra time and took a survey of the past and future of mental time travel. It appears in tomorrow's New York Times.
For those who crave more, here are…
loom | April 2, 2007There's nothing more grating for a science writer than see your work get cut and pasted to give people precisely the wrong impression. My latest irritation: "Ten Questions For Al Gore and the Global Warming Crowd", which appeared Friday on the conservative web site Townhall.com.
The author is John Hawkins, who describes himself as a professional blogger who runs Right Wing News. Hawkins claims that he is skeptical that humans are causing global warming because, in his words, "'the Earth-is-going-to-burn-us-alive' crowd cannot answer the most basic questions about the theory that they…
loom | March 26, 2007Before I head for Utah, let me direct your attention to two articles of mine in tomorrow's New York Times. They don't have a whole lot in common except they are examples of cool biology...
1. Virus traps. Here's a case where ecology, evolution, and medicine all come together in an intriguing mix. You can think of any population of animals, plants, or other organisms as a leaky bucket under a running faucet. The population is boosted by sources of new individuals, and drained by sinks. Sources may include rapidly reproducing individuals, or immigrants from other populations. Sinks include the…
loom | March 22, 2007Scientists often stick genes into organism in order to create something new. Remote-controlled flies, for example, or photographic E. coli. But by creating new kinds of life, scientists can also learn about the history of life. Give a mouse human vision, for example, and you may learn something important about how our own eyes evolved.
As mammals go, we have unusual eyes. Most mammals produce two kinds of pigments for catching light. One is sensitive to short wavelength light (at the blue end of the spectrum). The other is sensitive to a longer wavelength, in the green or red part of the…
loom | March 20, 2007Next week I'll be heading to Utah. Southern Utah University asked me to be their Visiting Eccles Scholar, which means that I'll be spending a couple days talking with students and faculty. I'll also be giving two talks that are open to the public. The first, Wednesday evening, will be on global warming and extinctions, about which I wrote an article for the New York Times a couple months back. The next evening I'll be talking about E. coli and the meaning of life. It's the first time I'll be speaking about my book in public, so I'm looking forward to sharing some of the stuff I learned while…
loom | March 19, 2007Science moves forward by flow. One experiment leads to another. Observations accrue. What seem like side trips or even dead ends may bring a fuzzy picture further into focus. Yet science often seems as if it moves forward one bombshell at a time, marked by scientific papers and press conferences. I can't think of a bigger contrast between the bombshell illusion and the flowing reality of science than the day in 2000 when President Clinton announced the completion of the first draft of the human genome on the White House lawn. He declared it "an epoch-making triumph of science and reason." And…
loom | March 14, 2007Perhaps the notion of conservatives building an alternative to Wikipedia that includes many "scientific" entries based on creationist books aimed at seventh graders sounds like some bizarre hoax. For those who doubt, there's now audio evidence.
National Public Radio ran a segment yesterday in which they interviewed the founder of Conservapedia, Andrew Schlalfly. The interviewer, Robert Siegel, got right to the point. He described Wikipedia's entry on kangaroos, which includes details about extinct species of kangaroos known from fossils. [Update: Maybe he was looking at the Macropod entry.]…
loom | March 12, 2007Dinosaurs had small genomes. At least some of them did--the ones that gave rise to birds. If you have access to Science, you can read my News Focus article on the new field of "dinogenomics." As I mentioned last week, my web site carlzimmer.com is in serious overhaul, so as soon as it's ready, I'll post a copy of the article there, too.
loom | March 7, 2007 If pubic lice are not the sort of thing you want to be seen reading about, let me give you the opportunity to close your browser window right now. But if you're at all curious about the secret that pubic lice have been keeping for over three million years, the tale of a mysterious liaison between our ancestors and the ancestors of gorillas--read on.
Many parasites tend to stick close to their hosts. A parasitic wasp may wander through forests and fields to find a caterpillar from a single species of butterfly in which it will lay its eggs. Blood flukes taste the water of their ponds for…
loom | March 6, 2007Josh at Thoughts from Kansas makes some good points today about the need for more systematists (scientists who describe new species), launching his musings from an article in today's New York Times about the remarkable Eastern Arc mountains by...d'oh! That was by me. Man, I have got to do a better job of staying ahead of the blogging curve.
loom | March 2, 2007Forbes.com contacted me a few weeks ago to write a piece for a special report they were putting together on the theme of achievement. They asked me if I'd write something about "reproductive achievement." As the father of two children--who will merely replace me and my wife in the human species count--I didn't think I had much personal authority on the matter. And, frankly, the whole notion of success by progeny is not really all that it's cracked up to be. After all, just about everyone alive a few thousand years ago is the ancestor of everyone alive today. Even if you give up your own sense…
loom | March 1, 2007Just a quick note: I'm in the process of changing hosts for my web site, carlzimmer.com. Once the transfer is done, you should be able to get to the article archive, book pages, and all the rest once more. The down time shouldn't last too long. The site will also be going through some long overdue overhauling. Believe it or not, the web site was built back in the twentieth century. Out with the vacuum tubes, I say.
loom | March 1, 2007In January, Scientific American ran an article by me about the evolutionary roots of cancer, which you can read here (and about which I blogged here). Now, via Respectful Ignorance Respectful Insolence [d'oh!], I've discovered a new review on said subject in the March issue of the journal Nature Reviews Cancer. The review, "Darwinian medicine: a case for cancer," is by Mel Greaves, of the Institute of Cancer Research in London. If you can get hold of the paper, it's definitely worth a read. Greaves covers a lot of ground, including some facets of the cancer-evolution story I didn't have room…