Ducky orchids and insects

February 21, 2013 • 9:41 am

When I first saw these pictures I was startled, for the resemblance of this Australian orchid (Caleana major) to a flying duck is amazing.

Picture 1

In fact its common names are the “flying duck orchid” and the “big duck orchid”.

From Friends of the Cove National Park, Inc: http://www.friendsoflanecovenationalpark.org.au/Flowering/Flowers/Caleana_major.htm
From Friends of the Cove National Park, Inc: http://www.friendsoflanecovenationalpark.org.au/Flowering/Flowers/Caleana_major.htm

Kuriositas has the botanical details:

The duck orchid is a perennial but blooms in late spring or early summer.  At up to 45 centimeters in height you might think it would stand out in its natural habitat.  However, because of the reddy-brown colors of both the stem and flowers it moulds in to its Australian environs so expertly that it becomes almost invisible – unless you are deliberately seeking out its company.

Image Credit Flickr User Davidfntau: http://www.flickr.com/photos/96936558@N00/4208765488/
Image Credit Flickr User Davidfntau: http://www.flickr.com/photos/96936558@N00/4208765488/

I was tempted to write that this orchid is pollinated by male ducks, who try to copulate with the flowers and thereby affix pollen to their heads (this is in fact true for insects pollinating the wasp and bee orchids), but I knew at least one reader would be taken in. But the facts are just as striking:

The ‘upside-down’ flower is reddish-brown, 15-20 mm long. The labellum or tongue, at the top, is a deep red and attached to the rest of the flower by a sensitive strap. Pollination is via male sawflies. When the insect touches the sensitive labellum it snaps shut, trapping the insect in the sticky body of the column. It deposits pollen it may be carrying and picks up more. It is then released to fly to the next orchid.

I’d love to grow one of these (I have several wild orchids in my lab), but, alas, that won’t be. As Kuriositas notes:

 If you have suddenly been gripped by the desire to own your very own duck orchid then you will be disappointed.  Despite numerous attempts, this orchid stubbornly refuses to be propagated, and is only found in the wild. This is because the roots of caleana have a symbiotic relationship with the vegetative part of a fungus which only thrives in the part of Australia in which it originates. The fungus helps the plant to stave off infections and without its help the duck orchid never lasts long.

And the Aussies, God bless them, have put the orchid on a stamp:

Caleana-Orchid-04-210x300

Finally, in a bizarre coincidence, I found this—a duck-faced lacewing fly! (It’s actually a “spoon-winged lacewing” in the genus Nemia, family Nemopteridae.) Spoon-winged lacewings are also called “thread-winged antlions”, for their larvae are predators on ants and other insects.

It’s described on Piotr Naskrecki’s website, The Smaller Majority. Here’s the bill:

The head and mouthparts of spoon-winged lacewings is elongated and well-adapted for fitting into long corollas of flowers [Canon 1Ds MkII, Canon 100mm macro, 2 x Canon 580EX]; photo by Piotr Naskrecki
The head and mouthparts of spoon-winged lacewings is elongated and well-adapted for fitting into long corollas of flowers [Canon 1Ds MkII, Canon 100mm macro, 2 x Canon 580EX]; photo by Piotr Naskrecki
But it’s not just the face that’s weird—check out its hindwings!:

Spoon-winged lacewings (?Nemia sp.) from Richtersveld National Park, South Africa [Canon 1Ds MkII, Canon 100mm macro, 2 x Canon 580EX]; photo by Piotr Naskrecki
Spoon-winged lacewings (?Nemia sp.) from Richtersveld National Park, South Africa [Canon 1Ds MkII, Canon 100mm macro, 2 x Canon 580EX]; photo by Piotr Naskrecki
As Naskrecki explains, the “duckface” is adapted to dip into flowers to eat nectar and pollen, but we don’t know why those hindwings are so large:

These lacewings are easily recognizable thanks to their unique, extremely elongated or enlarged hind wings, reminiscent of the long plumes seen in some birds-of-paradise. The function of this unusual morphology is still not entirely known. In species with particularly enlarged hind wings their function appears to be to deter some predators by giving a false impression of the insect as much larger—and thus potentially stronger—than it really is. In species with long, thread-like wings their function may be related to the aerodynamics of the flight, and in members of the subfamily Crocinae the hind wings play a sensory function in cavernicolous habitats that these insects occupy.

I would have thought sexual selection is involved, making these beasts the insect equivalent of long-tailed widowbirds, but that would lead to sexual dimorphism, with males having much longer wings than females. And that’s apparently not the case.

To see other species in this bizarre group, go here.

h/t: GN

Hoop dreams: arthritic otter gets basketball therapy

February 21, 2013 • 8:19 am

Sea otters are awesome, and you don’t know the meaning of “animal cute” until you’ve seen one in the wild cradling its baby on its belly as it floats on its back. (In that position they also put rocks on their belly and pound molluscs on the stones to break them open.) Here’s a “senior” sea otter who was taught to play basketball as a form of therapy.

What I don’t get is the statement in the video that Eddie was “taken for voluntary X-rays.” Now that’s a smart animal!

h/t: SGM

Oklahoma joins the benighted, tries to pass antiscience bill

February 21, 2013 • 7:15 am

Oklahoma may be about to join those states that, in an attempt to sneak creationism and global warming denial into the classroom, will enforce a “let a million criticisms flourish” bill on public school classrooms. The repeated failure of creationists and science denialists to force the teaching of antiscience in the classroom has, as you know, given rise to a new strategy: instead of mandating the teaching of, say, creationism or intelligent design, they try to allow “free criticism” of scientific theories (evolution) in the classroom, with the mandate that students not be penalized for views that contradict accepted science.

As Mother Jones reports, a new bill in the Oklahoma legislature, the “Scientific Education and Academic Freedom Act” ( HB 1674; free download at link), has passed the education committee by a 9-8 vote and will soon go to the full legislature:

In biology class, public school students can’t generally argue that dinosaurs and people ran around Earth at the same time, at least not without risking a big fat F. But that could soon change for kids in Oklahoma: On Tuesday, the Oklahoma Common Education committee is expected to consider [JAC: as noted above, it passed] a House bill that would forbid teachers from penalizing students who turn in papers attempting to debunk almost universally accepted scientific theories such as biological evolution and anthropogenic (human-driven) climate change.

Gus Blackwell, the Republican state representative who introduced the bill, insists that his legislation has nothing to do with religion; it simply encourages scientific exploration. “I proposed this bill because there are teachers and students who may be afraid of going against what they see in their textbooks,” says Blackwell, who previously spent 20 years working for the Baptist General Convention of Oklahoma. “A student has the freedom to write a paper that points out that highly complex life may not be explained by chance mutations.”

Stated another way, students could make untestable, faith-based claims in science classes without fear of receiving a poor mark.

Well, first of all, modern evolutionary theory doesn’t explain life by “chance mutations” alone: that’s the old creationist canard that “evolution says everything got here by chance,” like assembling a Boeing 747 by blowing wind through a junkyard.  But of course that’s bogus, for complex life (i.e., complex adaptations) arise by a combination of a random process (mutation that creates variation) and a deterministic one (the sorting of that variation via natural selection). The statement shows that Blackwell doesn’t even understand evolution, but is mouthing creationist dogma.

Now as I read the bill (see below), it’s not completely clear whether students really can write papers and give creationist answers without academic penalty, but the intent of the bill is clear: to blur the teaching of real science and superstition in the classroom. It gives teachers free license to “go against what they see in the textbooks”—like evolution.

HB 1674 is the latest in an ongoing series of “academic freedom” bills aimed at watering down the teaching of science on highly charged topics. Instead of requiring that teachers and textbooks include creationism—see the bill proposed by Missouri state Rep. Rick Brattin—HB 1674’s crafters say it merely encourages teachers and students to question, as the bill puts it, the “scientific strengths and scientific weaknesses” of topics that “cause controversy,” including “biological evolution, the chemical origins of life, global warming, and human cloning.”

Eric Meikle, education project director at the National Center for Science Education (NCSE) in Oakland, California, says Oklahoma has proposed more anti-evolution legislation than any other state, introducing eight bills with academic freedom language since 2004. (None has passed.) “The problem with these bills is that they’re so open-ended; it’s a kind of code for people who are opposed to teaching climate change and evolution,” Meikle says.

Meikle is right. Let’s look at what the bill says:

A. The Oklahoma Legislature finds that an important purpose of science education is to inform students about scientific evidence and to help students develop critical thinking skills they need in order to become intelligent, productive, and scientifically informed citizens. The Legislature further finds that the teaching of some scientific concepts including but not limited to premises in the areas of biology, chemistry, meteorology, bioethics and physics can cause controversy, and that some teachers may be unsure of the expectations concerning how they should present information on some subjects such as, but not limited to, biological evolution, the chemical origins of life, global warming, and human cloning.

Note the fields singled out: evolution, the origin of life (often lumped with evolution), global warming, and human cloning (not something often discussed in public-school biology classes).  All of these subjects are mentioned because of how they resonate with the faithful.

B. The State Board of Education, district boards of education, district superintendents and administrators, and public school principals and administrators shall endeavor to create an environment within public elementary and secondary schools that encourages students to explore scientific questions, learn about scientific evidence, develop critical thinking skills, and respond appropriately and respectfully to differences of opinion about controversial issues. Educational authorities in this state shall also endeavor to assist teachers to find more effective ways to present the science curriculum where it addresses scientific controversies. Toward this end, teachers shall be permitted to help students understand, analyze, critique, and review in an objective manner the scientific strengths and scientific weaknesses of existing scientific theories pertinent to the course being taught.

That is, teachers can go against the textbooks, which present accepted science. To me this is the most invidious part of the bill, for it mandates that the teachers themselves will address nonexistent controversies (i.e. whether evolution occurred, whether there’s anthropogenic global warming). This is not just a suggestion, but something that’s mandated. Imagine the confusion that will engender!

C. The State Board of Education, a district board of education, district superintendent or administrator, or public school principal or administrator shall not prohibit any teacher in a school district in this state from helping students understand, analyze, critique, and review in an objective manner the scientific strengths and scientific weaknesses of existing scientific theories pertinent to the course being taught.

This means, in effect, that teachers won’t be penalized for discussing creationism and intelligent design as viable alternative that address the “scientific weaknesses” of the modern theory of evolution. The same goes for global warming.

D. Students may be evaluated based upon their understanding of course materials, but no student in any public school or institution shall be penalized in any way because the student may subscribe to a particular position on scientific theories. Nothing in this subsection shall be construed to exempt students from learning, understanding and being tested on curriculum as prescribed by state and local education standards.

To me, this reads as if students don’t have to believe what they’re tested on, but can still be penalized if their answers on tests or in papers don’t conform to state science standards. And that take doesn’t comport with the opening statement of the Mother Jones piece: “In biology class, public school students can’t generally argue that dinosaurs and people ran around Earth at the same time, at least not without risking a big fat F. But that could soon change for kids in Oklahoma. . . ”

Blackwell’s statement, as reported by Mother Jones, contradicts Mother Jones‘s interpretation, but is still a bit ambiguous:

HB 1674 goes further than a companion bill under consideration in the state Senate by explicitly protecting students, teachers, and schools from being penalized for subscribing to alternative theories. It does, however, say that children may still be tested on widely accepted theories such as anthropogenic climate change. “Students can’t say because I don’t believe in this, I don’t want to learn it,” Blackwell says. “They have to learn it in order to look at the weaknesses.”

While implying that students will be “tested on widely accepted theories,” Blackwell also notes that they won’t be “penalized for subscribing to alternative theories.” But what is an F but a penalty? Or can you subscribe to one theory in your heart but be required to parrot the correct scientific answers? If the latter is the case, then this bill doesn’t do anything new vis-à-vis student behavior, for we never ask students to believe what they must write in their papers or tests; merely demonstrate an understanding of modern science.  What worries me more than this is the mandate that teachers must “teach the controversy” when the controversies the bill’s authors have in mind don’t exist.

Finally, in a weaselly attempt to argue that religion isn’t behind all this, the bill has a disclaimer:

E. The provisions of the Scientific Education and Academic Freedom Act shall only protect the teaching of scientific information, and shall not be construed to promote any religious or nonreligious doctrine, promote discrimination for or against a particular set of religious beliefs or nonbeliefs, or promote discrimination for or against religion or nonreligion. The intent of the provisions of this act is to create an environment in which both the teacher and students can openly and objectively discuss the facts and observations of science, and the assumptions that underlie their interpretation.

What they mean is “hey, folks, don’t think this is religiously and politically motivated, even though it is.” Well, the courts may construe it differently, and let us hope that if this bill is enacted, they will. But let us hope first that the bill won’t get passed, but goes into the legislative dustbin with the eight other bills of this nature that have failed in Oklahoma.

In late January a similar bill was introduced in Indiana, our neighboring state, and in March I’m going there to help fight that one.

h/t: Sarah

Pawprints 2: Roman cat ruins brickwork

February 20, 2013 • 3:04 pm

Here’s another trace of an ancient moggy, this time from a 1975 paper by G. S. Maxwell, “Excavation at the Roman Fort of Bothwellhaugh, Lanarkshire, 1967-8″ (Brittania 6:20-35; free download). I quote from the paper and reproduce the photo in question:

The most remarkable find in this category was, however, the collection of twenty-five brick-fragments which were discovered in the fill of a disused post-hole belonging to a first-period building on the north-west side of the Via Principalis; four of these bore imprints of an animal’s paw; (PL. VII).

Dr. A. S. Clarke of the Royal Scottish Museum, Edinburgh, has kindly examined these pieces and identified the animal as a cat, probably Felis domesticus. The width of the prints varies from 25 to 35 mm, considerably smaller than that of the pad-impressions from the Roman fort at Mumrills (Proc. Soc. Ant. Scot. lxiii (1928-29), 57I f.), which were identified as Felis sylvestris. [JAC: note that the name of the housecat, once Felis domesticus, is now Felis catus or, sometimes, Felis silvestris catus, the latter designating the housecat as a subspecies of the wildcat Felis silvestris. And a subspecies of F. silvestris, Felis silvestris lybica, the African wildcat, was probably the wild ancestor of all housecats.]

The fact that the impressions of the claws can also be seen in three of the Bothwellhaugh ex-amples, although more faintly than in the Mumrills fragment, would suggest that the animal was not allowed to maintain a regular pace in its progress across the drying bricks.

I like the dry humor of the last sentence.

cat prints

h/t: Tweet by @DeepFriedDNA via Matthew Cobb

First Amendment alert: bill in U.S. Congress gives money to rebuild storm-damaged churches

February 20, 2013 • 12:57 pm

A piece in yesterday’s New York Times,  the American House of Representatives has overwhelmingly approved a bill (see link below) to allow government money to be used for repairing houses of worship damaged by Hurricane Sandy.

The bill, approved last week by a vote of 354 to 72, had support from Roman Catholic and Jewish organizations. It was opposed by 66 Democrats and 6 Republicans.

(Passage in the Senate, which is necessary to bring the bill to Obama for signing into law, isn’t yet assured.)

The disparity in political parties here is no surprise: Republicans are more often faith-heads. But what happened to religious organizations favoring the separation of church and state? Oh, right—that goes out the window if every faith can benefit equally.

This is, indeed, a violation of the First Amendment, for it uses taxpayer money to fix churches, and that’s a benefit to the church.  Churches already enjoy benefits that I consider a violation of the Constitution: ministers’ housing for instance, is tax free, while Dan Barker and Annie Laurie Gaylor, though they run a nonprofit secular organization, don’t get tax-free housing. And neither should I, as an atheist, have to pay to fix up a storm-damaged church. Isn’t such damage, after all, an “act of God”?

The House bill adds houses of worship to the list of private nonprofit organizations eligible for disaster relief. Federal law already allows such aid to museums, zoos, performing-arts centers, libraries, homeless shelters and other private nonprofit entities that provide “essential services of a governmental nature to the general public.”

The House bill would apply to property damaged by the storm and damage from future disasters.

Under the bill, “a church, synagogue, mosque, temple or other house of worship, and a private nonprofit facility operated by a religious organization,” would be eligible for federal disaster assistance “without regard to the religious character of the facility or the primary religious use of the facility.”

Museums, zoos, libraries, and homeless shelters are public goods, to which we all should contribute. Religion is not. The Federal Emergency Management Agency (FEMA), in charge of helping finance restoration of areas damaged by natural disasters, has historically refused to fix up houses of worship, except for those parts that provide social services. FEMA is opposed to this bill, too, on the ground that it would force them to make impossible decisions between “worship space” and “secular space”.  Does fixing up a roof, for example, protect only the secular parts of a church?

And here’s a distinction without a difference:

The speaker of the New York City Council, Christine C. Quinn, had unsuccessfully urged FEMA to change its regulations without legislation, writing in a letter to the agency: “Recovery from a natural disaster like Hurricane Sandy isn’t a matter of state sponsoring religion. It’s a matter of helping those in need after one of the worst natural disasters our country has ever seen.”

Well, can’t churches and synagogues buy insurance like the rest of us?

In the end, it comes down to this:

But Representative Jerrold Nadler of Manhattan, the senior Democrat on the House Judiciary Subcommittee on the Constitution, said: “This bill would direct federal taxpayer dollars to the reconstruction of houses of worship. The idea that taxpayer money can be used to build a religious sanctuary or an altar has consistently been held unconstitutional.”

The American Civil Liberties Union agreed, saying it was a bedrock principle of constitutional law that “taxpayer funds cannot go to construct, rebuild or repair buildings used for religious activities.”

This is just another attempt to breach the American wall between church and state, and give unconscionable and unconstitutional privilege to religion.

If you choose to write or call your Senator, who will be voting on the bill soon, you can find his/her contact information here; the bill is H. R. 592. I expect that the Freedom from Religion Foundation will have something to say about this.

In other news, a cat and a DVD drive fought to a standstill.

Jesus ‘n’ Mo ‘n’ THEOLOGIANS

February 20, 2013 • 9:44 am

Alert readers Veronica Abbass and Linda Grilli called my attention to today’s Jesus and Mo, and the nice h/t that the artist gave me:

Today’s script is thanks to Walter Kaufmann (1921-1980). The quote, which is heavily edited in the barmaid’s speech, was spotted and posted by Jerry Coyne at Why Evolution is True. Thanks!

The artist reads me! I’m chuffed!

2013-02-20

The J&M link goes to the original quote by Walter Kaufmann (remember Kaufmann Week?), which came from his 1961 book Faith of a Heretic (pp. 126-127).

Indeed, [theologians] resemble lawyers in two ways. In the first place, they accept books and traditions as data that it is not up to them to criticize. They can only hope to make the best of these books and traditions by selecting the most propitious passages and precedents; and where the law seems to them harsh, inhuman, or dated, all they can do is have recourse to exegesis.

Secondly, many theologians accept the morality that in many countries governs the conduct of the counsel for the defense. Ingenuity and skillful appeals to the emotions are considered perfectly legitimate; so are attempts to ignore all the inconvenient evidence, as long as one can get away with it, and the refusal to engage in inquiries that are at all likely to discredit the predetermined conclusion: that the client is innocent. If all else fails, one tries to saddle one’s opponent with the burden of disproof; and as a last resort one is content with a reasonable doubt that after all the doctrines that one has defended might be true.

I’m in Hebrew!

February 20, 2013 • 8:52 am

I forgot that WEIT was being published in Hebrew—by an Israeli firm called Books in the Attic. At last my people will be able to read it in the original language through which Yahweh transmitted the book to me.

Here is the new cover (reversed, of course, because Hebrew is written right to left). I can’t read Hebrew (shame on me), but perhaps a literate reader can let me know if all is okay.

Picture 1

That makes 16 languages, and the next one (the one I’m most keen on) is Arabic!