Wednesday: Hili dialogue (and lagniappe)

January 6, 2016 • 5:30 am

It’s Wednesday, and the weather is gonna get really frigid in Chicago, with lows of -16°F (-27°C) on the weekend.

Screen shot 2016-01-06 at 4.50.56 AMAnd so be it: as a long-term resident, I have the proper clothing. Meanwhile in Dobrzyn, Hili is still trying to run Listy, though she is only an impediment (don’t tell her!)

A: What are you doing up there?
Hili: I’m organizing and supervising your work.

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In Polish:
Ja: Co tam robisz?
Hili: Organizuję i nadzoruję waszą pracę.
And some treats: I woke up to three emails from readers featuring animals. Matthew sent a tw**t about a bison hit by lightning (he added, “Poor Sparky!):

Reader Barry sent a link to a jaguar swimming (they apparently like water):
And Mahul sent a video of rock climbing bears (I may have posted this before):
Thanks, all!

 

The world’s saddest raccoon (and snake lagniappe)

January 5, 2016 • 3:00 pm

Both of these items come from the eagle-eyed Matthew Cobb, who somehow finds time to trawl Twi**er and the Internet when he’s not teaching, doing science, or writing books. Plus he’s got two daughters, a wife, and three cats.

At any rate, he found this raccoon on Twi**er, and it’s a very sad one, watching its cotton candy (“candy floss” to the Brits) dissolve away when dunking it in water, as raccoons tend to do. It looks extremely puzzled. (By the way, nobody’s quite sure why raccoons “wash” their food in water before nomming it.)

And Matthew found gif of a molting snake (which looks like it’s exiting a turtle shell) on Tumblr:

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The Charlie Hebdo anniversary cover

January 5, 2016 • 2:15 pm

In two days it will be the first anniversary of the attack on the Charlie Hebdo offices, killing twelve—nine of them working for the magazine (two were police and one a maintenance man).  Thanks to the Centre for Inquiry Canada, I have a copy of the “survivor’s issue”, the first one released after the slaughter. That cover, simultaneously conciliatory and satirical, featured Muhammad saying “All is forgiven.”

Charlie_Hebdo_Tout_est_pardonné

The new anniversary issue is out, and here’s the cover (I hope to get one). It’s not directed towards Muslims alone, but toward all religion, showing a bloody generic God toting a Kalashnikov, and the title: “One year on: The assassin is still out there.”  It’s more defiant than the “survivor” cover, and shows that the surviving staff are as brave as ever in satirizing faith:
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The pyramid with the eye is also part of the Great Seal of the United States, representing the “eye of providence”.  You can see it on every American one-dollar bill, as below, but the “all-seeing Eye” has been part of religious iconography for centuries.

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h/t: Alex

Tim White goes Full Curmudgeon: damns the love affair between media and science

January 5, 2016 • 1:00 pm

Timothy White, a paleoanthropologist at Berkeley, is rightly famous for his work on hominin fossils, especially Lucy. And he’s done some good work against creationism as well: he was the scientist who most flummoxed the UK creationists in our television show “Conspiracy Road Trip“. The fundies just couldn’t get around his sequential presentation and explanation of hominin skulls (see the segment starting at 43:37).

And White has ample experience with a media that loves new stories about human evolution. (Neandertals copulating with H. sapiens sapiens! Denisovans! Hobbit people in Indonesia!) But I guess that experience has soured him, leading to his November 26 piece in the Guardian whose title tells the tale: “Why combining science and showmanship risks the future of research.”

It’s curiously garbled and splenetic, but the thesis is that showmanship—both scientists’ own participation in the media and the media’s distortion of science—is causing serious damage to “the credibility of scientists.”

Here’s what White objects to:

  • Distortion of scientific findings by the media, which also neglects the hard work behind science in favor of “aha moments.” (One example he gives is a NOVA/National Geographic program implying that Darwin’s tree of life was wrong because there is gene flow between different lineages, including hominin linages like Neandertals and “modern” humans. Sound familiar? Remember the New Scientist cover?)
  • Science may be done and published too quickly on the media’s time schedule, like the premature announcement of Darwinius masillae, a “missing link” between primate groups that proved to be bogus.
  • Scientists can be seduced by the media, since publicity and media stardom can enhance their professional careers.
  • “Peer review” by people on the Internet that bypasses “normal” peer review of papers in journals. As he writes:

“Do we really want to rely on cartoonists as peer reviewers, or Hollywood scriptwriters to replace documentarians? Do we really want authors, journal editors, and peer reviewers evaluating science with one eye trained on the 11 o’clock news?” (Look at the link, though.)

White argues that the consequences of the media/science mishmash are dire: “Our fates increasingly depend on science and technology. So there are some serious questions to ponder if broadcast and publication schedules distort knowledge production and dissemination in this mash-up of science and the modern media.”  The article ends with a rather curmudgeonly tirade against the corruption of science:

In 1875, Mark Twain wrote to the legendary entertainer P.T. Barnum, noting that whereas his circus shows were stupendous, Mr. Barnum himself was “the biggest marvel.” Had Barnum’s over-the-top self-promotion and publicity stunts even worked on the ever-skeptical Twain? Barnum, of course, expertly exhibited many oddities in his shows. I haven’t researched whether his spectaculars ever featured a wheelbarrow’s worth of mixed bones. But given that he did exhibit a mermaid, a microcephalic, and Tom Thumb, it is unlikely that the showman would have passed on the opportunity.

Approaching 150 years later, the internet’s great speed and connectivity have disrupted many things, including review mechanisms in science, education, and journalism. We can accurately guess what old P.T. Barnum’s perspective would have been on the entertainment end of the present disruption spectrum—worship of the money, the advertising, and the spectaculars that we watch today on our phones, tablets and desktops. We certainly miss Mark Twain’s keen eye for corruption and human nature, and his talent for the right words to make fun of it all.

Given the deliberate, careful, sustained, and ultimately solid research and logic behind Charles Darwin’s most brilliant insights, it is not difficult to guess his reactions to this modern mash-up: emotions ranging between wonder and dismay.

While I have immense respect for White and his work, I simply can’t agree with his arguments. Yes, there are some downsides of the media/science romance, including television shows that present the occult or the dubious without criticism, or National Geographic‘s current infatuation with religious myth. But, by and large, most science shows and articles are pretty good. Witness David Attenborough, the new Cosmos with Neil deGrasse Tyson, and the books of science “stars” like Brian Greene, Lisa Randall, Lawrence Krauss, Richard Dawkins, and E. O. Wilson.

Further, the reputation of scientists, at least in the US, is not falling. We remain at the same high level of public esteem as ever. Surveys show (see here, for instance) that “in the U.S., scientists and their organizations enjoy almost unrivaled respect, admiration, and cultural authority. Americans overwhelmingly trust scientists, support scientific funding, and believe in the promise of research and technology. Among institutions, only the military enjoys greater admiration and deference.” That was from a Pew Poll six years ago, but a National Science Foundation poll only a year ago found that “more than 90 percent of Americans think scientists are ‘helping to solve challenging problems’ and are ‘dedicated people who work for the good of humanity.'”

So what’s the problem? I don’t think there is one.

As far as I can see as a newly superannuated research scientist, being a media “star” can get one attention and dosh, but does very little for one’s scientific career. Remember when Carl Sagan failed to get into the National Academy of Sciences because he was a “popularizer”? He was immensely influential and a great public educator, but that snobbish body didn’t see what he did as a contribution to science. It’s still pretty much that way. I too learned that my popular books and writings had absolutely no influence on my professional advancement. But that was fine with me, for I saw the popularization as an enjoyable avocation and the science as a vocation.

Finally, bringing professional science reviewing into the public realm has way more upsides than downsides. First of all, internet review is FAST, and problems with papers can be noted and publicized far more quickly than they are if handled through normal professional channels. (Criticisms of published work that is submitted to journals often takes months to appear, and is often buried online.) Think of how fast we learned that Darwinius was bogus as a missing link, or that the so-called “arsenic-based life” in Mono Lake was due to contamination.  That was days, not months.

The debunking of published science in these and other cases was done not just by blogging scientists, but by science-friendly amateurs and even journalists like Carl Zimmer.

As for unduly neglecting the tedious aspects of science, well, White has a point there. “Eureka moments” are rare, and most science ends in failure. (I estimate that in my own career, only about one-third of the projects I did panned out.) But people’s attention spans are limited, there’s lots of competition forit, and it’s better to show the Eurkena moments than to show nothing.

Looking at the plethora of science books in my nearby bookstore, seeing all the biologists, physicists and cosmologists who have become public figures, and seeing the respect that Americans have for science (evolution is a sad exception!), I just can’t get worked up about the “problems” highlighted by White. Yes, there may be some mutant children produced by the coitus between science and the media, but that’s more than outweighed by the many healthy offspring of that intercourse. The more public science, the better!

. . . But maybe I’m wrong:

Comments on chameleon tongue science post (up at 9 a.m.): 13
Comments on speaker in vagina playing Mozart to fetus post (up at 10:30 a.m.):  37

 

 

A fantastic new product: a speaker in vagina allows your fetus to hear unmuffled Mozart

January 5, 2016 • 10:30 am

Whether prenatal exposure to music really helps babies develop faster is controversial, but that hasn’t stopped pregnant women from buying all kinds of devices to expose their fetuses to music—usually classical. (This is based on the equally controversial and dubious “Mozart Effect“, the claim that cognition in children and adults is improved–short term–by listening to classical music.) Previously, the prenatal musical speakers were strapped to the belly, like this one:

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But of course how well can your fetus really hear Mozart when those glorious notes have to penetrate all of the abdomenal skin, tissue, fat, and uterine wall? Can such the fetus distinguish between J. S. Bach and P. D. Q. Bach, or between Mozart and Aerosmith? That’s crucial.

Never fear! As reported in the Guardian, you can bypass a lot of that annoying and muffling tissue by sticking the speaker right into the vagina! And a Spanish company, Babypod, has just the ticket: a vaginal speaker system that costs only US$132.85. Here’s the item and how you use it:

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Look at how that sound gets right up to the baby’s ears, and how the baby is smiling as it hears The Magic Flute! Of course it may play hob with your urination, not to mention your sex life, but you use it for only a short time:

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On its webpage, Babypod claims that it’s “the only device that has been demonstrated to stimulate the vocalization of babies before birth with music.” I wasn’t aware that babies could even vocalize before birth, being in liquid and all, but what do I know?

The Guardian gives more details (my emphasis):

The pale pink device, which costs 150 euros (£110), is controlled by a phone app but does not use Bluetooth. Parents-to-be can share their babies’ listening experience using split headphones which hang out of the vagina.

The Babypod, which has a top sound level of 54 decibels, is recommended for use from the 16th week of pregnancy, and for between 10-20 minutes a time – or around half the length of the average Joanna Newsom song.

Babypod was launched at the “first concert for foetuses ever held in the world” in which Soraya Arnelas, who finished 23rd in the 2009 Eurovision song contest, “serenaded” 10 pregnant women fitted with the speakers, singing Christmas carols.

Babypod reassures customers that the vibrations of the device do not adversely affect a foetus – “this is why sex toys are allowed in pregnancy”.

And here’s that Fetal Concert; apparently the singer’s music was transmitted directly into the vaginas of the audience. As she said, “I’ve never performed for such a young audience.”

I’m not sure I want to live in this world any more. . .

h/t: Grania

You won’t believe which vertebrate shows the greatest acceleration and power of its body parts!

January 5, 2016 • 9:00 am

Yes, a clickbait title again. Soon I’ll have fallen so low as to make lists like “Five facts you didn’t know about the wallaby.”

Anyway, I’m glad to see that today’s New York Times Science section has some real science beyond human health. Click on the screenshot below to go to a short article and cool video about the highest acceleration and relative power output by any vertebrate. It’s in a chameleon:

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The short piece highlights the work of Christopher V. Anderson, a postdoctoral researcher at Brown University. His website includes a link to his thirteen videos on chameleon feeding behavior, and I’ll put one of them below. Here’s a bit from today’s NYT piece (my emphasis)

The smallest chameleon [Anderson] tested, Rhampholeon spinosus, not only had this long tongue extension, but, as he writes in a paper published in Scientific Reports, it also demonstrated the highest acceleration and power output for any movement by a reptile, bird or mammal. Small insects and mantis shrimp put larger animals to shame.

The acceleration was about 8,500 feet per second per second, which meant that the tongue was pulling about 264 gs. And the power output was 14,040 watts per kilogram (about 2.2 pounds).

Anderson hypothesizes that the greater relative tongue extension of smaller chameleons rests on their requirement for relativly more food based on a higher metabolism. You can read his paper in Scientific Reports for free (reference and link below). Here’s my summary:

Anderson measured the tongue projection length, speed, acceleration, and power in 55 individuals (279 events) in 20 species of chameleons in nine genera. Here are the graphs of those statistics plotted against snout-vent length (“SVL”) in each species. Plot A shows projection distance, B peak projection velocity, C peak projection acceleration, and D peak projection power relative to body mass. As Anderson predicted, the power of the shot (but not the velocity) is higher in smaller species, and while bigger species can extend their tongues bigger distances, smaller species can extend their tongues relatively longer distances, i.e., smaller species can catch prey at greater distances relative to their body size—proportionately greater distances. (The relatively greater projection distance in graph A is shown by the slope of the black line being significantly smaller than that expected from body size alone—the slope of “expected” light gray line assuming tongue projection scales exactly to body size. Because smaller chameleons fall above the expected line, they extend their tongues farther than expected under 1:1 scaling.

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Compared to other species, these data show that chameleons show the highest peak accelerations and mass-specific power of any known amniote (mammals, reptiles and birds). Here are some data adduced by Anderson:

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 Look at that rate of mantis shrimp striking acceleration: 104,000 meters/second/second! That’s 232,641 miles/hour/second (i.e., if that acceleration were maintained for one second,the claw would be traveling at over 232,000 miles per hour.

The big question: why do smaller species show greater power and relatively greater tongue extension. Anderson assumes the relationship is adaptive (note: it may not be!), and says it’s connected with the relatively higher metabolic needs of smaller species. He gives another hypothesis, which I won’t describe, but his data support the metabolic theory. As the paper notes:

Given the higher mass-specific metabolic rates of smaller animals, small chameleon species may be under pressure to increase the  effectiveness of their feeding apparatus in order to mitigate metabolic scaling constraints. Under this scenario, one would expect small chameleons to project their tongues proportionately further than large species and be capable of capturing larger prey.

This study found. . .that both peak acceleration and power output scaled in direct proportion to body size, suggesting that the energy potentially lost due to high accelerations is not reduced in small species by having proportionately lower accelerations for their body size. On the other hand, with proportionately longer jaws, a proportionately larger tongue apparatus, proportionately larger tongue muscle cross sectional areas, and a proportionately longer tongue projection distance relative to their body length, small chameleons have effectively increased the relative size of their entire feeding apparatus. In doing so, small chameleons have increased the functional range of their prey capture mechanism, and are likely able to capture and process larger prey items than they would otherwise be able to if their muscle cross sections and jaws were not disproportionately large for their body size. is inference is supported by the selection of proportionately larger prey items by the smaller of two morphological forms in Bradypodion. These patterns are thus consistent with those that would be predicted for mitigating metabolic scaling constraints, which may be involved in driving the observed morphological scaling patterns.

I’m not sure, though, whether smaller species of chameleons really do have a higher mass-specific metabolism than do larger species. The author cites five papers in support of that hypothesis, but one is on mammals,one on birds, and one on amphibians. We know that in mammals and birds the mass-specific metabolism is indeed higher in smaller species (they lose more energy in radiated heat since their surface area-to-body mass ratio is higher). But I haven’t read the other two papers on reptiles (one is on the desert chameleon alone, so it’s not relevant), so I’m not sure we have the information for reptiles showing higher relative metabolism in smaller species. After all, reptiles are, in contrast to birds and mammals, ectothermic (they regulate body temperature externally from the environment, rather than keeping a constant temperature from metabolic heat). That might eliminate the surface area/body mass relationship that obtains in birds and mammals, who have to balance heat loss through the body against heat production in the tissues.

Here’s one of Anderson’s videos showing the famous Jackson’s Chameleon (Triceros jacksonii, a native of Africa) snagging a grub. After clicking on the arrow, then click on the underlined words on the screen to go to the video on YouTube.

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Anderson, C. V. 2016. Off like a shot: scaling of ballistic tongue projection reveals extremely high performance in small chameleons. Scientific Reports 6:18625.

Readers’ wildlife photographs

January 5, 2016 • 7:30 am

Whenever I see Pete Moulton post on FB (I check it rarely), I importune him for photographs. Here are the latest ones with his notes (indented):

Per your request, here are a few photographs from this fall here in the Phoenix [Arizona] area. All were taken with my old Canon 100-400mm zoom lens on a crop-frame camera.
First are two consecutive shots from a burst featuring an adult Snowy Egret, Egretta thula, foraging at a pond in Gilbert. It seems to have missed this time.

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Next, a more successful Pied-billed GrebePodilymbus podiceps, with its Sunday brunch at my home patch. Another grebe was chasing this one, trying to get that sunfish.

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I spend a lot of time just sitting quietly in one spot, and sometimes the birds will come over to visit. This juvenile Green Heron (Butorides virescens) did just that, and stayed until a couple of incautious kids came by and spooked it off.

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A trip to a park in Glendale, Arizona to look for a different bird produced this early-season duck image. He’s a drake Eurasian Wigeon (Anas penelope), deep in his prealternate molt. This guy’s an old friend, having spent the last two winters at this same park. Most of my other images of him are from later in the season, when his molt is largely finished. If I remember correctly, I’ve sent you one of those before.

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Another early-season duck is this first-winter drake Northern Shoveler, Anas clypeata. Shovelers don’t get the respect they deserve, as far as I’m concerned, but they’re quite beautiful in their own way.

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And finally, this year’s Facebook avatar. It’s my personal ritual to go birding as early as possible each year, and use whatever bird I photograph first as my avatar, and this year this Cactus Wren (Campylorhynchus brunneicapillus) at the Desert Botanical Garden won out over a Curve-billed ThrasherToxostoma curvirostre, in the same area. The Cactus Wren is also the Arizona state bird, so always a worthy subject.

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And here’s the thrasher.

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Tuesday: Hili dialogue

January 5, 2016 • 6:00 am

It’s a boring week: dull, cold and gray. To paraphrase Smokey Robinson, there’s plenty of work but the bosses ain’t paying. Things are going to hell in the Middle East and the Iran/Saudi Arabia fight has a largely religious cause. For a short but informative primer on the difference between Sunni and Shia Islam, see this short piece in yesterday’s New York Times. How many have been killed as the legacy of a squabble over who was the rightful heir of Muhammad? On this day in history, jazz bassist Charlie Mingus died in 1979 at the age of only 57. Meanwhile in Dobrzyn, Hili, despite her normal gourmet fare, appears to have nommed a worm:

Hili: What are you looking for?
Cyrus: Something walked here.
Hili: A little worm. I ate it. It was tasty but I’ve eaten better ones.

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In Polish:
Hili: I czego tam szukasz?
Cyrus: Coś tu chodziło.
Hili: Robaczek, którego zjadłam. Smaczny był, ale jadłam lepsze.