biology
bioephemera | October 11, 2009
Dominik Paquet
Getting on this a little late, but the 35th annual Nikon Small World competition winners are out! See article and gallery from SciAm.
emjohnson | October 10, 2009
In the classic film Casablanca, the drama hinges on Ilsa's choice between two men: her kind and supportive husband or her rugged and passionate ex-lover. In a moment of abandon, Ilsa returns to her lover's arms only to later change her mind and choose the more stable life she would have with her long-term partner. But what if something as simple as a pill had caused Ilsa to feel differently and make the opposite choice?
In a new paper in the journal Trends in Ecology and Evolution biologists Alexandra Alvergne and Virpi Lummaa at the University of Sheffield in England raise the possibility…
bioephemera | October 8, 2009
Okay, so this apron by Aksel Varichon is awesome. Very fun. But what's with the oven mitt?
If the premise of the apron is that we're seeing internal anatomy partially revealed on the wearer's body, doesn't the matching mitt imply that we have little hearts and kidneys in our wrists?
The artist also makes tablecloths and placemats with similar designs, but those don't really bother me, because it's not like your table has viscera to be revealed. I'll admit, it's not like the apron's anatomy is accurate - it has one lung, a really bizarre circulatory system, and it's missing many major…
emjohnson | October 7, 2009Researchers from Simon Fraser University, just a stone's throw from where I sit in Vancouver, have determined that the side effects from this endocrine disruptor can alter children's behavior:
Researchers have just linked prenatal exposure to bisphenol-A - a near-ubiquitous industrial chemical - with subtle, gender-specific alterations in behavior among two year olds. Girls whose mothers had encountered the most BPA early in pregnancy tended to become somewhat more aggressive than normal, boys became more anxious and withdrawn.
Another recent study, by Joe Braun of the University of North…
jstemwedel | October 6, 2009Actually, it might be a philosophical question.
Younger offspring: One of my classmates told me that you fart every second.
Dr. Free-Ride: What, me personally?
Younger offspring: No, humans.
Dr. Free-Ride: Each individual human farts every second?
Younger offspring: Yeah.
Dr. Free-Ride: No, I don't think so.
Elder offspring: Well, there's gas exchange with your butt all the time.
Dr. Free-Ride: I don't think super-low levels of gas exchange count.
Younger offspring: Gas-exchange is a fart.
Dr. Free-Ride: No, I think there needs to be a macroscopic quantity of gas released all at once for it…
jstemwedel | October 6, 2009Thursday, October 8, at 8 pm, the Firebird Ensemble will be performing The Origin Cycle, eight selections from Charles Darwin's work Origin of Species set to music. The performance will be at Stanford University's Campbell Recital Hall, and tickets are free, but you'll want to reserve your seats online ahead of the performance.
Here's a bit of information on The Origin Cycle:
Charles Darwin's Origin of Species is not only one of the most important scientific works of all time, but one of the most beautifully written. In The Origin Cycle, eight contemporary composers set fragments of Darwin'…
emjohnson | October 6, 2009Aldous Huxley wrote in his Collected Essays that, "Most ignorance is vincible ignorance. We don't know because we don't want to know." In Plants and Empire: Colonial Bioprospecting in the Atlantic World, Stanford historian Londa Schiebinger highlights the role that such intentional ignorance played in the dissemination of knowledge (and the lack thereof). Whether this ignorance is of local plants and languages--because of the early scientific tradition of naming species only after revered European naturalists--or whether it is of the abortifacients that women would use to terminate an…
grrlscientist | October 5, 2009tags: Tree of Life, conservation, biodiversity, ecology, evolution, biology, statistics, teaching, streaming video
This video presents a very brief glimpse into what I do as a professional researcher studying "my birds" -- the parrots of the South Pacific Ocean (during those rare and beautiful times when I actually have a job!!). To say the least, it fills me with intense longing to reclaim my long lost life.
oracknows | October 5, 2009...and, no, I don't mean Orac, his last few posts notwithstanding.
No, don't worry, this post is most definitely not about Bill Maher. Rather, it's how, while doing searches for that craziness, I found even more disturbing craziness. Even though I was disappointed in him on this one issue and even though I often don't agree with him on religion, never let it be said that I don't still have considerable admiration for Richard Dawkins. That's why, when I came across some truly over-the-top attacks on Dawkins, I thought it would be worthwhile to mention them, as a little wafer to cleanse the…
scientificactivist | October 5, 2009Today, the Nobel Committee announced the winners of the 2009 Nobel Prize in Physiology or Medicine, equally shared between Elizabeth Blackburn of UCSF, Carol Greider of Johns Hopkins, and Jack Szostak of Harvard Medical School--all three American. This year's prize was awarded for the discovery of telomeres, the repeated sequences of DNA at the ends of chromosomes that protect the integrity of the chromosomal DNA, and for the discovery of telomerase, the enzyme that builds the telomeres.
This prize recognizes seminal work in molecular genetics and biology that unlocked some of the basic…
pontiff | October 5, 2009The Nobel Prize in Physiology or Medicine for 2009 has been announced and has been awarded to Elizabeth H. Blackburn, Carol W. Greider and Jack W. Szostak for "how chromosomes are protected by telomeres and the enzyme telomerase." I'm sure the medicalbioblogs here on Scienceblogs will have some fine coverage of this. But one thing jumps out at me: Carol Greider was, I think, a graduate student when she worked did this work! So, dear graduate student procrastinating by reading this blog, please get back to work and win that there Nobel Prize!
Oh, and of course, in the Nobel counting game…
grrlscientist | October 4, 2009tags: Tree of Life, conservation, biodiversity, ecology, evolution, biology, statistics, teaching, streaming video
This video presents a very brief glimpse into what I do as a professional researcher studying "my birds" -- the parrots of the South Pacific Ocean (during those rare and beautiful times when I actually have a job!!). It features interviews with one of the scientists whom I worked with when I was in grad school at the University of Washington: Scott Edwards, who now is at Harvard University. To say the least, this video fills me with intense longing to reclaim my long lost life…
bioephemera | October 3, 2009I'm guessing this type of behavior is why this breed of bird is so rare:
Thank 3QD for the laugh. ;)
grrlscientist | October 2, 2009tags: physiology, The Bloodmobile, They might be Giants, music video, streaming video
Here's another fun music video; "The Bloodmobile" by the creative group, They Might be Giants. This song tells about the many functions of blood, from providing oxygen to tissues to helping transport hormones (well, hormones are generally transported in the plasma).
grrlscientist | October 1, 2009tags: science, Science is Real, They might be Giants, music video, streaming video
Here's a fun music video; "Science is Real" by the creative group, They Might be Giants. This is one of many wonderful songs on their new album "Here Comes Science."
You can order They Might be Giants' new album [CD/DVD], "Here Comes Science" from Amazon.
jstemwedel | October 1, 2009I don't usually go looking for a fight, but there are some cases where I'll make an exception.
You know, of course that I'm a big fan of DonorsChoose. And you'll recall that PETA's tactics make them a problematic organization as far as I'm concerned regardless of what your views on animal welfare or animal rights might be.
So, when PETA takes a swing at DonorsChoose, of course I want to jump in off the ropes and swing back. What's PETA's issue with DonorsChoose?
DonorsChoose.org is a nonprofit organization with a noble mission - to help teachers purchase materials for classroom lessons.…
ejohnson | October 1, 2009There's no denying that sex is important for most creatures biologically. For humans, the biological imperative of sex has seeped into our psyches over thousands of years worth of evolution, making it more essential than we realize. On The Frontal Cortex, Jonah Lehrer reports on a new column in Mind Matters positing that love and lust have cognitive benefits, significantly affecting test subjects' abilities to solve logic and insight puzzles. Over on Not Exactly Rocket Science, Ed Yong reports on an exceptionally atypical case of invertebrates that have "abandoned sex altogether" for some 80…
bioephemera | October 1, 2009
A gift idea for the person who already has everything: spider silk couture! (Or the closest thing to it). It took one million spiders to produce the silk for this textile from Madagascar (although the wild spiders were released after their silk was extracted, so some of them may have been repeat donors.) The video is absolutely fascinating:
The silk is naturally golden and undyed. Each individual thread in the cloth was made by twisting 96 to 960 individual spider silk filaments together. I would love to touch it - I can't really imagine what it must be like, can you?
Via Wouldn't You Like…
revere | October 1, 2009A couple of days ago Dr. Marion Koopmans, chief of virology in the infectious diseases laboratory of the National Institute of Public Health, The Netherlands, notified the infectious disease community through the website/email list ProMed that two of their swine flu isolates showed a particular genetic change in one of the virus's eight genetic segments. Even though this virus has been described as relatively stable genetically, individual viruses, even within the same patient, often have small differences in the thousands of letters that make up their genetic code. Influenza A virus is a…
aardvarchaeology | September 30, 2009
My friend Eddie the pagan goldsmith has inadvertently discovered an unusual way to acquire a clean mink skeleton. Here's what you do.
Set some crayfish traps in a lake.
A mink will break into one of the traps to get at the crayfish, get stuck and drown.
When retrieving your traps with their catch, fail to find the one the mink has thrashed around in.
Since you have lost the trap, crayfish and other scavengers will have ample time to clean the mink's bones.
The following year, set the traps again along the same lake shore. When you retrieve them, find the trap you lost last year.
The mink's…