evolution
jlynch | March 4, 2007The New York Times is featuring a discussion of the evolution of religious belief. While the article is largely a discussion of Scott Atran's work, Dawkins, Dennett and Harris ("They have been portrayed as an unholy trinity of neo-atheists, promoting their secular world view with a fervor that seems almost evangelical") also get a
mention. The article also notes that 6 in 10 Americans believe in the devil and hell, 7 in 10 believe in angels, heaven and the existence of miracles and life after death, while 92% believe in a personal God.
Update: James and Razib both offer their thoughts on the…
grrlscientist | March 4, 2007
Darwin's Origin of Species (1859) is now available for free as an audio download. LibriVox volunteers have just completed a public domain audio recording of Charles Darwin's pivotal work, "On the Origin of Species by Means of Natural Selection" -- free to download, copy, and share. It's unabridged and over twenty-four hours long.
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tags: Darwin, evolution
evolvingthoughts | March 2, 2007
Way back in 1843, John Stuart Mill wrote this:
When the laws of the original agent cease entirely, and a phenomenon makes its appearance, which, with reference to those laws, is quite heterogeneous; when, for example, two gaseous substances, hydrogen and oxygen, on being brought together, throw off their peculiar properties, and produce the substance called water---in such cases the new fact may be subjected to experimental inquiry, like any other phenomenon; and the elements which are said to compose it may be considered as the mere agents of its production; the conditions on which it…
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…
pharyngula | March 2, 2007(click for larger image)Reconstruction of O. reburrus by M. Collins. The precise arrangement of the anteriormost region remains somewhat conjectural.
Halkieriids are Cambrian animals that looked like slugs in scale mail; often when they died their scales, called sclerites, dissociated and scattered, and their sclerites represent a significant component of the small shelly fauna of the early Cambrian. They typically had their front and back ends capped with shells that resembled those we see in bivalve brachiopods. Wiwaxiids were also sluglike, but sported very prominent, long sclerites, and…
oracknows | March 1, 2007I apologize for submitting you to the previous three creationist videos. I realize that they were pretty mind-numbing, and then there was that cheesy Christian rock ballad.
So here's one antidote. (Warning: The video is nearly two hours long; even I haven't had time to watch the whole thing yet.) And it happened at one of my old alma maters, Case Western Reserve University.
it's good for what ails you. Watch it a little at a time if it's too long to watch all at once.
oracknows | March 1, 2007Here's the finale of my audience participation project for today. I've saved the "best" for last. This short video, called Science Refutes Its Own Laws?, is the target. Your mission, should you decide to accept it, is to answer the questions contained therein and/or demonstrate why they represent typical creationist canards, and do it without reference to Talkorigins.org. It's pretty easy, but it's also depressing that this crap persists. Also, don't be too depressed. There's one more of these coming, but it's an antidote.
It's also amusing how confident the tone of the video is. Forgive me…
oracknows | March 1, 2007Here's part 2 of my audience participation exercise. This is a continuation of my audience participation/open thread set of posts for today. It's called "list the creationist fallacies." This post is part 2 of this endeavor. This short video, called Which came first, the DNA or the protein?, is the target. Your mission, should you decide to accept it, is to answer the questions contained therein and/or demonstrate why they represent nothing more than the typical creationist canard. It's pretty easy, but it's also depressing that this crap persists. If that's not entertaining enough, feel free…
mikethemadbiologist | March 1, 2007It sure looks that way. Last night, I was talking to a colleague and he told me that several groups, including his, are seeing a very interesting pattern in commensal Escherichia coli (those E. coli that live in everyone's gut and aren't making us sick).
In humans, it appears that roughly 20% of all commensal E. coli belong to one of three clones that have a global distribution (in bacteriology, a clone is a group of very closely related strains). (an aside: In animals, there doesn't appear to be this skewed pattern. In animals, the distribution of clones appears to be more evenly…
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…
oracknows | March 1, 2007Busy, busy, busy last night and all day today until late, namely because I'm out of town on business. My schedule has been packed, and I won't be home until late. There's no time to post one of my characteristic pearls of verbosity. So what do I do when this happens?
Be grateful that YouTube exists, that's what. With a little planning ahead and a few minutes' work, I can make sure that the Respectful Insolence you all know and love keeps flowing while I'm away, only this time with some help. This time around, I'm going to do a couple of audience participation/open thread kind of posts. It's…
evolvingthoughts | February 28, 2007
This is a repost of a piece I wrote for The Panda's Thumb in April 2004. I add it here to put it in the Basics series.
One of the more difficult conceptual problems the layperson has with biology lies in the simple word "primitive". It has many antonyms - "modern", "evolved" and "derived", and like many biological uses of ordinary words, everybody thinks they understand it, and doesn't.
It is a word from the Latin, of course, for "first fruits" or "first things of their kind", but in modern use it means "simple" or "undeveloped". And this is not - quite - what it means in biology.
It…
evolvingthoughts | February 28, 2007
Ignore the incredibly lame credits song. This is a cool video, filmed in Panama by actual ecology students, foot fungus and all...
Click To Play
Biodiversity is all around us! In this video we introduce you to the concept of biodiversity. It is more than just the total number of species, however. It describes diversity at all levels from genetic diversity to ecosystem diversity. Yet we are losing biodiversity. We pose the question, "What can each of us do to help save what is left?"
mikethemadbiologist | February 27, 2007
Beta test version of Conservapedia graphical interface. Isn't he reassuring?
What happens when you take Science Blogs "basic concepts" and add it to Conservapedia, the information website for fucking morons? You get more fun than a barrel of monkeys (which, of course, are not related to humans...). Here's what the Stupid People have to say about genes (this is the entire definition):
A section of DNA that codes for the production of a protein or a portion of a protein. The gene is the fundamental unit of heredity. Although the gene is the fundamental unit of heredity, changes in genes (so…
loom | February 26, 2007I suspect poking around Conservapedia will become one of my new tools for procrastination. You're guaranteed a jaw drop within a couple minutes of searching on this Wikipedia for conservatives. It occurred to me that I had not yet bothered to look up "creationism." The entry is a whiplash of a read, with critics and backers of creationism having it out, sometimes within a single paragraph. What really struck me was the section on "Attempts to Criticize Creationism." The history page shows that it is authored by "Aschlafly"--presumably Andrew Schlafly, founder of the entire site. It is marked…
loom | February 26, 2007My ancestry forms a smear across northern and central Europe, a region of the world where many people have a peculiar gift: they can drink milk as adults. Almost all people can digest milk sugar (lactose) as babies, but in many parts of the world they lose this ability after they stop nursing. The change is due to an enzyme called lactase, which breaks down lactose into digestible fragments. Most people stop making lactase as they grow up. If they drink milk, the lactose builds up in their guts, where it can be devoured by microbes that produce gas and other discomforts. (It's not so…
mikethemadbiologist | February 26, 2007When I heard that Republican Senator and presidential candidate John McCain spoke at the Discovery Institute, I was disappointed but not surprised. In March, there's going to be a report released about antibiotic resistance in bacteria. A major finding of the report: roughly 40,000 people die every year from hospital-acquired antibiotic resistant bacterial infections.
The problem of antibiotic resistance is, fundamentally, a problem of evolutionary biology. Species of bacteria which had very few resistant strains (or none at all) now contain high frequencies of resistance strains (e.g…
grrlscientist | February 26, 2007
Have you heard about the amazing ice fish? One of the extraordinary evolutionary adaptations found in the extreme Antarctic cold is found in the ice fish. The fish has no red blood cells and no hemoglobin, so its blood plasma flows more freely. The oxygen that its muscles need simply dissolves in the plasma. [photo source: BBC News]
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tags: ice fish, Antarctica
oracknows | February 26, 2007I'm getting really, really tired of this.
You've all read my rants at the propensity of surgeons who clearly don't have clue one about evolutionary theory spouting off ignorantly about the alleged shortcomings of evolution as a theory while either explicitly or implicitly promoting the pseudoscience of "intelligent design" creationism. I don't think I have to expound much on just how much this phenomenon irritates me other than to repeat my desire to find a more permanent solution to the question of hiding my face in shame over the antics of my fellow surgeons on this. Perhaps it truly is…