biology
aardvarchaeology | August 8, 2009
[More blog entries about sweden, nature, photography; skärgård, foto, stockholm, natur.]
Tärnskär ("Tern Island") is a low seal-like grey cliff on the outer margin of the Stockholm archipelago. My buddy Dendro-Ãke only goes there when an eastern wind is blowing, because if your engine dies and there's any other wind, you end up on the other side of the Baltic.
The archipelago is a really amazing land/seascape. Imagine a flat gneiss and granite plateau criss-crossed by huge faults and crevices. Now run a few glaciations across it, sanding it down real good, so that everything is…
grrlscientist | August 7, 2009tags: TEDTalks, biomimicry, technology, Janine Benyus, streaming video
Janine Benyus has a message for inventors: When solving a design problem, look to nature first. There you'll find inspired designs for making things waterproof, aerodynamic, solar-powered and more. Here she reveals dozens of new products that take their cue from nature with spectacular results.. [20:15]
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes.
bioephemera | August 5, 2009The Bipartisan Policy Center's Science for Policy Project, co-chaired by former Rep. Sherwood Boehlert (R-NY), past chair of the House Science Committee, and Donald Kennedy, former editor of Science, and directed by David Goldston, former chief of staff of the House Science Committee, released its report today.
The report focuses on the need to draw clean distinctions between science issues and policy issues:
"The fundamental theme of the report is that the Administration needs to put in place procedures to try to distinguish science questions from policy questions," said Boehlert. "Often,…
bioephemera | August 5, 2009So on my return to regular Scienceblogging, I see that Mike the Mad Biologist and Razib are taking exception to a point made by Megan McArdle in the Atlantic. McArdle observes that the heritability of weight is quite high - almost as high as the heritability of height:
Twin studies and adoptive studies show that the overwhelming determinant of your weight is not your willpower; it's your genes. The heritability of weight is between .75 and .85. The heritability of height is between .9 and .95. And the older you are, the more heritable weight is.
Okay: how you take that statement depends…
awild | August 4, 2009Here's an image for the textbooks:
Ants, like butterflies, pass through egg, larva, and pupa phases on their way to adulthood. While in Florida earlier in this summer I found a nest of the twig ant Pseudomyrmex gracilis with brood present in all stages, providing the material to make these images.
The key was placing the developing ants on a glass slide. This provided distance between them and the cardboard background, so that the backdrop is blurred while the insects remain in sharp focus. These images are not what I'd call fine art, but I'm happy with them as solid illustrations of ant…
emjohnson | August 4, 2009In 1996 Cornell astrophysicist and science popularizer Carl Sagan posed the question, "What are conservatives conserving?" It was not something he asked lightly. The question appeared in his final book following a prolonged battle with bone marrow disease. Faced with his own mortality, he wanted to understand the individuals whose actions, whether consciously or not, threatened the lives of so many others. Sagan was a passionate advocate for science but, first and foremost, he was an advocate for humanity itself.
A kindred spirit, someone representing the same passion for science and…
ejohnson | August 3, 2009Here at ScienceBlogs, we're generally fans of the Discovery Channel. MythBusters is great. Man vs. Wild is thrilling. Planet Earth is, of course, one of the most sublime ways to spend an hour—or if you're lucky enough to get your hands on the boxed DVD collection, eleven hours. Straight.
But we just can't get behind Shark Week. Here's the thing: Shark Week has been airing annually since 1987. Every summer for over twenty years, people have gathered to their television sets to learn about how to defeat a Great White if attacked (punch it in the nose), and how long sharks have been around for…
jstemwedel | August 1, 2009Yes, it's a day late. Dr. Free-Ride and Dr. Free-Ride's better half are currently engaged in sprog retrieval maneuvers at the home of the Grandparents Who Lurk But Seldom Comment. What follows is this morning's attempt to get the Free-Ride offspring to tell us something science-y.
Dr. Free-Ride: Were there any things you noticed while you were away from us that you think might have to do with science?
Younger offspring: I noticed that when I go in the ocean, the salt water makes my eyes red, and I wanted to know why.
Dr. Free-Ride: That sounds like a reasonable matter for scientific…
grrlscientist | July 30, 2009tags: biodiversity, conservation, endangered species, Encyclopedia of Life, TEDTalks, E.O. Wilson, streaming video
As E.O. Wilson accepts his 2007 TEDTalks Prize, he makes a plea on behalf of all creatures that we learn more about our biosphere -- and build a networked encyclopedia of all the world's knowledge about life [24:22]
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers are invited to give the talk of their lives in 18 minutes.
oracknows | July 27, 2009Last week, I expressed my surprise and dismay that the Atheist Alliance International chose Bill Maher for the Richard Dawkins Award. I was dismayed because Maher has championed pseudoscience, including dangerous antivaccine nonsense, germ theory denialism complete with repeating myths about Louis Pasteur supposedly recanting on his deathbed, a href="http://oracknows.blogspot.com/2005/12/bill-maher-anti-vax-wingnut.html">hostility towards "Western medicine" and an affinity for "alternative medicine," a history of sympathy to HIV/AIDS denialists, and the activities of PETA through his…
emjohnson | July 25, 2009On July 25, 1920 the English biophysicist Rosalind Franklin was born. She was instrumental in discovering the molecular structure of DNA, though her vital contributions were only posthumously acknowledged. After receiving her PhD from Cambridge in 1945 she worked as a research associate for John Randall at King's College in London. Beginning in early 1951 she took X-ray diffraction photographs of DNA that showed a helical form of the molecule, a finding confirmed by James Watson and Francis Crick who subsequently won the Nobel Prize for their DNA research. In lecture notes dated November…
bioephemera | July 23, 2009
"O.K., let's slowly lower in the grant money."
Todd Bearson
Arlington, Mass.
This cartoon in the latest New Yorker gave me a (cynical) guffaw this morning. Nice caption, Todd Bearson. . . do you work in science? ;)
emjohnson | July 23, 2009Primate sociality is linked to brain networks for pair bonds.
Social conservatives are fond of linking morality with monogamy and will be quick to condemn the moral crimes of adulterous felatio while ignoring the moral crimes of cutting social programs for poor mothers. However, in a bizarre twist, research suggests that morality and monogamy are closely intertwined, though it's doubtful many conservatives will champion the reasons why.
In the journal Science Robin Dunbar revisits the question with a unique perspective as to why some species (including humans) succeed so well as members of…
ejohnson | July 20, 2009
Like the Marvel Comics villain Mysterio who blocks Spiderman's spider-sense by emitting a special gas, a species of tiger moths can jam the sonar signals emitted by bats in order to escape the grisly fate of becoming a midflight meal. The tiger moths, Bertholdia trigona, possess a unique structure, the tymbal, that produces a clicking noise similar to the one made by bats themselves, but until recently it was uncertain whether the moths were actually emitting ultrasonic signals or whether they were sending a different message, such as "I'm poisonous." Now, researchers at Wake Forest…
emjohnson | July 20, 2009Mark Hemingway, the Conservative "tough-guy" for the National Review, has just posted a rant against health concerns for the endocrine disruptor Bisphenol A.
I've seen some estimates that over a billion people have had exposure to BPA and there isn't proof of anything. So why the big scare? I assume trial lawyers are involved in the fear mongering. That's a given. But then I saw that last year two reporters from the Milwaukee-Journal Sentinel won a George Polk Award-- a major journalism honor -- for reporting on the "dangers" of BPA. It's another reminder that there are some perverse…
grrlscientist | July 20, 2009tags: TEDTalks, medicine, infections, new technology, alpha-gal aptomer, antibiotics, Kary Mullis, streaming video
Drug-resistant bacteria kills, even in top hospitals. But now tough infections like staph and anthrax may be in for a surprise. In this video, Nobel-winning chemist Kary Mullis, who watched a friend die when powerful antibiotics failed, unveils a radical new cure that shows extraordinary promise [4:42]
TEDTalks shares the best ideas from the TED Conference with the world, for free: trusted voices and convention-breaking mavericks, icons and geniuses, all giving the talk of…
bioephemera | July 18, 2009Or is it Arma-goo-ddon?
For some reason, balls of unidentified biological goo have started showing up in the news. First we had the mysterious North Carolina sewer blob. It turned out that was just a colony of tubifex worms - yes, the same kind you feed your fish. But now we have a giant oceanic Alaskan goo ball:
"It's pitch black when it hits ice and it kind of discolors the ice and hangs off of it," Brower said. He saw some jellyfish tangled up in the stuff, and someone turned in what was left of a dead goose -- just bones and feathers -- to the borough's wildlife department.
"It kind of…
bioephemera | July 17, 2009
Alstroemeria, sp.
Robert Buelteman
One of my favorite short stories is Hawthorne's Rappaccini's Daughter, in which an eccentric, Frankensteinian botanist breeds increasingly beautiful, increasingly deadly flowers. These images from Robert Buelteman remind me of Rappaccini's garden. His creative process sure sounds like something Dr. Frankenstein might have employed:
Buelteman hits everything with an electric pulse and the electrons do a dance as they leap from the sheet metal, through the silicone and the plant (and hopefully not through him), while heading back out the jumper cables. In…
bioephemera | July 15, 2009Wow. Here's another inexcusable case of bad science journalism - one that clearly has political motives. This is the lede from a story by Amanda Carpenter in this morning's Washington Times:
President Obama's top science adviser has toyed with extreme measures of population control, even suggesting in one book how to make it more publicly acceptable for the government to spike drinking water in order to sterilize people.
Wow! That would be quite a shocker - if it were true.
Honestly, this "news" article goes off the rails so hard in its first paragraph, I barely know where to start! First…
grrlscientist | July 14, 2009tags: snowball, dancing cockatoo, parrots, Cacatua galerita eleanora, interview
Snowball, adult male Eleanora (medium sulfur-crested) cockatoo, Cacatua galerita eleanora.
Image: courtesy of Bird Lovers Only [larger view].
I have been working behind the scenes for the opportunity to interview Irena, the woman who lives with the amazing Snowball, the dancing cockatoo. She recently indicated her willingness to be interviewed so I am going to share the fun with all of you, dear readers. I gave you one week to think of all those questions that you'd like to ask Irena about Snowball, and the…