New tetrapod footprints found

Matthew Cobb of Why Evolution Is True writes about some recently found fossil tetrapod footprints that are roughly 20 million years older than the now famous Tiktaalik fossil, which was a lobe-finned fish (not quite having tetrapod status).

Cobb says:

These exquisitely-preserved traces not only date to 397 MY (22 MY years earlier than Tiktaalik) above all they clearly show the marks of feet and toes. They were not made by a lobe-finned fish. They were made by tetrapods. And big ones at that – some of the traces (there are around a dozen of them) suggest the animals were up to 2 metres long.

Paleontologist Grzegorz Niedzwiedzki, who discovered the tracks, originally thought they were dinosaur tracks until he realized that the rocks where the tracks were found were older than the earliest dinosaurs. That’s a pretty cool discovery!

Tetrapod Footprints

There are no skeletal fossils yet of the creature that made the tracks, so we don’t have an indication of what the creature looked like, but (Cobb again)…

…the fact that they show such clear traces of toes shows that the current view that tetrapods evolved at most 385 MY ago is wrong. Behaviour has trumped anatomy – we can see what the animal did, even if we don’t (yet) know exactly what animal made it. For the moment, these animals are “ghost fossils” – they must have existed, but we don’t know what they were.

There’s even more excitement about this discovery because of its location.

Not an obscure Polish quarry, but the tropical tidal mud-flats that made up the rock that was eventually dug up nearly 400 MY later. It was previously thought that the first steps onto land – like those by Tiktaalik – were made in brackish ponds. The authors correctly write that their discoveries “force a radical reassessment of the timing, ecology and environmental setting of the fish-tetrapod transition, as well as the completeness of the body fossil record”.

PZ Myers talks about the footprints on Pharyngula, too. Here’s an image of the footprints in sequence.

Tetrapod Footprint Path

Myers says:

Here are the trackways. Note that what they show is distinct footprints from both the front and hind limbs, not drag marks, and all that that implies: these creatures had jointed limbs with knees and elbows and lifted them and swung them forward to plant in the mud. They were real walkers.

Aside from the really cool discovery, what I also find interesting about this discovery is the attitude of the scientists who are writing about it. There is no obstinate clinging to established understandings of the evolutionary path(s) taken from fish to tetrapod. They happily acknowledge that we have to reassess our understanding based on this new information. There will be plenty of debate, additional research, and disagreements about the implications of the new discovery… but that’s how science works. When new information presents itself, it must be considered and, if it somehow changes our previously deduced conclusions, our conclusions must change.

Ultimately, it leads us to a greater understanding of our world and our history.

And isn’t that the whole point of science?

Update: Brian Switek of Laelaps has a great writeup on this as well!

Nova-What Darwin Never Knew

Just a quick post to suggest a fantastic program. I watched this and was mezmorized. The last episode of NOVA (on PBS) was called, “What Darwin Never Knew”.  It delved into the genetics that Darwin could never have been aware of, yet reinforced his theories. The program illustrated just how brilliant Darwin’s theories were, considering he had no access to modern genetic research.

http://www.pbs.org/wgbh/nova/beta/evolution/darwin-never-knew.html

Teaching ignorance and bigotry

In the comments section of an American Spectator article about Wikipedia, while there are some good, valid warnings against using Wikipedia as a reputable source for everything, there are some pretty amazing comments…. and by “amazing,” I mean “hyperbolic, right-wing, anti-science, anti-intellectual” comments. Though the article is related to the issue of climate change, that’s not where I want to focus, but I did want to convey the source for this post.

One of the commenters, Margie, responding to a long display of denier talking-points and conspiracy theories, posted that her advice, as a solution, was home-schooling. Here’s her initial comment [sic].

My advise? Home school your children. You have to re educate them anyway when they come home from public school anyway if you want them to learn the truth. The truth being that our founding Fathers were not racists, that God created man, that 2 +2 really does equal 4.. that man really cannot control the environment but God does in His loving kindness since the very beginning of this wonderful planet He has given us, that abstinence really does work, that homosexuality is really sin and God did not make us that way.. and I am sure I am missing some other things too.

Home school if you can!

What she is suggesting is to teach ignorance… to teach willful ignorance of reality… to teach that it’s better to not question, to be satisfied with not knowing, to be bigoted and intolerant, and to believe despite a complete lack of evidence. I’ll grant her the 2 + 2 = 4 part and perhaps the founding fathers part (though I’m not sure the relevance), but aside from that, she’s suggesting we keep children ignorant. Worse, actually… that we keep them misinformed with falsehoods and fantasies.

There is a response by William to her post.

If you want to advise people about schooling, it would be a good idea to learn how to spell “advice”.

Did you know that the bible forbids you to eat weasels?

Though I generally find spelling corrections in comment threads to be a bit obnoxious, in this case it was somewhat relevant. The “weasel” comment was amusing, and if you check his website, it makes sense why he included it. The verse to which he refers is Leviticus 11:29-30, which states (in the King James translation):

29 These also shall be unclean unto you among the creeping things that creep upon the earth; the weasel, and the mouse, and the tortoise after his kind,

30 And the ferret, and the chameleon, and the lizard, and the snail, and the mole.

Of course, Margie responds to William’s comment with…

Picky, picky, picky. Typical Leftist picking on the spelling. Maybe it’s because I wasn’t home schooled..ha!

Judging from your website I’d say you definitely weren’t. An atheist, are you?

Now that would be the real issue here, wouldn’t it?

Another sign that you weren’t home schooled is that you don’t know your Bible. It forbids no such thing, as God declared to call nothing unclean as far as animals, to eat! (Acts 10:13).

If you don’t know God, you know nothing.

Even if you do know how to spell.

It’s a disturbing response, but not surprising, given her previous comment (and the venue). First, he’s automatically a “Leftist.” Then she continues by stating that she’s deduced he’s a scientist (based on his website… it’s true), he’s not homeschooled (also probably true) and he’s an atheist (also true). None of that is an issue except, based on the rest of her comment style, it’s a pretty safe bet that she means it all as a bad thing. Of course, the cherry on top is that she says that his atheism is the “real issue here.” I beg to differ and think it’s more likely her love of ignorance and her belief in ancient mythology that is the “real issue here”… the issue being the quality of education.

Of course, according to Margie, not knowing your bible is also a sign that you’re not homeschooled. Since she wasn’t homeschooled, either, it makes sense that the verse she lists doesn’t say what she thinks it says. Acts 10:13 says (again King James)…

13 And there came a voice to him, Rise, Peter; kill, and eat.

Perhaps she meant to add verses 14 and 15, but it’s hard to say.

14 But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.

15 And the voice spake unto him again the second time, What God hath cleansed, that call not thou common.

That seems a bit contradictory to the Leviticus passage, but perhaps God changed his mind… and in context, it doesn’t seem to be particularly supportive of her claim, anyway.

In fact, there’s nothing about most of her claims that is supported by anything factual. She simply spouts unsubstantiated religious platitudes as if they are self-evident truths… in support of something that would be horrendously damaging to the intellectual stability (and development) of our country. In addition, she insinuates that being a scientist (and an atheist, though that’s not necessarily related) is somehow an indication of a poor education. That is a clear, cut and dry example of anti-intellectualism… the idea that the more education and training you receive, the less credible you become.

Margie displays a perfect example of the right-wing attitude that “well-educated” equals “untrustworthy.” She holds to her anti-education position by clinging to her religion’s dogma with pit-bull tenacity, evidence be damned, and decries anyone who doesn’t follow in her self-righteously pious footsteps as the “real issue here.”

Her attitude is one that, sadly, must be constantly challenged in this country. It’s an attitude that, unchecked, would lead us toward a theocracy full of ignorance, something that our founding fathers (something about which Margie makes a knowledge claim) would definitely have not wanted. Our purely secular Constitution is perfect evidence of that.

Of course, not all religious people are ignorant or bigoted or anti-intellectual… but the ones like Margie are. Unfortunately, they’re also loud and plentiful enough that their message tends to spread like wildfire, infecting the public discourse with disinformation, pseudo-science, blatant falsehoods, and vitriolic, spiteful indignation. Rational discussions and open, honest debates are nearly impossible in the environment they create. It’s frustrating. It’s sad. It’s pathetic.

But sadly, like Margie, it’s reality.

Jerry Coyne criticizes The Guardian

Jerry Coyne criticizes The Guardian for its “faitheism and mush-headed religious apologetics” and finds a piece by Nancy Graham Holm titled “Prejudiced Danes provoke fanaticism” to be particularly despicable.

In the article, Holm refers to the now infamous Danish cartoons, one of which portrayed Muhammad wearing a bomb as a turban (Holm incorrectly states it was a turban with a stick of dynamite). Kurt Westergaard, the cartoonist, created a political cartoon that was a satirical criticism of Muslim extremists and the violence they lavish on society… violence seemingly swathed in a robe of self-righteous indignation. The extremists’ indignation comes from any disagreement about their unjustified assertion that Islam should be held in gloriously high esteem and revered by all… hence their outrage over Westergaard’s cartoon.

Holm says of the cartoon, the paper who published it, and the Danes in general…

Why did the editors of Jyllands-Posten want to mock Islam in this way? Some of us believed it was in bad taste and also cruel. Intentional humiliation is an aggressive act.

[…]

Danes fail to perceive the fact that they have developed a society deeply suspicious of religion. This is the real issue between Denmark and Muslim extremists, not freedom of speech. The free society precept is merely an attempt to give the perpetrators the moral high ground when actually it is a smokescreen for a deeply rooted prejudice, not against Muslims, but against religion per se. Muslims are in love with their faith. And many Danes are suspicious of anyone who loves religion.

As Coyne says, “Rightly so!”

Holm seems to be blaming the cartoonists and the Danish newspaper for the violent reaction of Muslim extremists. While the cartoons, perhaps, spurred on the actions of the extremists, I don’t think the blame can be placed, even in small part, on the cartoonists. That is akin to blaming the rape victim for looking sexy.

Coyne says…

What the cartoons expressed was not “intentional humiliation,” but criticism of a sexist, oppressive, and lethal form of Islam.  And by blaming Islamic reaction on the Danes themselves, Holm allies herself with those religious loons who find “offense” everywhere, and with the benighted Irish who passed the blasphemy law.

Finding offense seems to be a religious pastime in which not only Muslims participate. From the manufactured “War on Christmas” controversy to Christian outrage over atheist bus ads and billboards, religious fundamentalists seem to be on the lookout for anything onto which they can hitch their pious indignation. Any criticism of cherished beliefs is treated as a grave personal insult.

I commented on Coyne’s post, saying that all religion is (and should be) fair game for criticism and analysis… just as politics, art, literature, and science are. If the adherents to a particular religion don’t like it and become violent, the fault is not of the critic or analyst… much as the rape victim is not at fault for being attacked.

Holm doesn’t seem to get that.

Bertrand Russell on God and Religion

A Facebook friend linked to this video (3:25 in length) and I thought it worth sharing. Bertrand Russell answers some questions (in 1959) about God, religion, and why he’s an atheist.

httpv://www.youtube.com/watch?v=2aPOMUTr1qw

As a side note, when I was 13 and starting to seriously question religious faith, Bertrand Russell’s book Why I Am Not a Christian was the first book I ever purchased on the topic. The essays it contains put me on the path to understanding that intellectual honesty is better than blind, obedient faith and that ethics and morals based on rational concepts are far, far better than simply following vague, archaic laws from questionable holy books.

Russell famously said, “I am as firmly convinced that religions do harm as I am that they are untrue.”

I am in agreement.

Foundation Beyond Belief Official Launch

Foundation Beyond Belief Looking for an exceptionally worthwhile charity to support this year? Check out the Foundation Beyond Belief, which is officially launching today. Founder Dale McGowan, the author of Parenting Beyond Belief and Raising Freethinkers, started Foundation Beyond belief with the following goals.

To demonstrate humanism at its best by supporting efforts to improve this world and this life; to challenge humanists to embody the highest principles of humanism, including mutual care and responsibility; and to help and encourage humanist parents to raise confident children with open minds and compassionate hearts.

The Foundation features ten charitable organizations each quarter focusing on a number of different areas such as health, education, poverty, child welfare, human rights, etc. When you join and contribute, you determine where your contribution should go (among the ten charities for that quarter). At the end of the quarter, all the donations are distributed and a new set of charities is selected. More information can be found at the Foundation’s About page.

Here are a few details.

  • Foundation Beyond Belief is a non-profit charitable and educational foundation created (1) to focus, encourage and demonstrate the generosity and compassion of atheists and humanists, and (2) to provide a comprehensive education and support program for nontheistic parents.
  • The Foundation will feature ten charitable organizations per quarter.
  • Members join by signing up for a monthly automatic donation in the amount of their choice, and distribute it however they wish among the categories. Contributions are fully tax-deductible.
  • Members can join a social network and forums centered on the ten categories of giving, advocate for causes, and help us choose new beneficiaries each quarter.
  • Featured beneficiaries may be founded on any worldview so long as they do not proselytize. At the end of each quarter, 100 percent of the donations are forwarded and a new slate of beneficiaries selected.
  • On the educational side, the Foundation will help create and fund local groups for the education and social support of humanist/atheist parents.

Here’s the Foundation’s introductory video as well.

httpv://www.youtube.com/watch?v=-8uhWVgJVqs

Consider the Foundation Beyond Belief for your charitable donations. You’ll be supporting great causes and, as Dale’s mission statement says, demonstrating humanism at its best.

Evolution is going great!

From The Onion comes another hilarious piece titled Evolution Going Great, Reports Trilobite. I so love evolutionary satire. Here’s a bit…

“It’s a wonderful time to be alive,” said the tri-lobed creature, its protruding feelers and antennules twitching spasmodically with anticipation. “To be born during this, the Cambrian Explosion—why, I couldn’t imagine a better period, really. It’s all happening right now! I mean, if things keep going the way they’re going, what with evolution taking off and everything, pretty soon we’ll have huge, towering reptiles roaming across the earth.”

“Can you imagine it? Reptiles!” the trilobite added. “I’m not even sure what those are!”

Climate Literacy Primer Follow-up

My post about a climate literacy brochure from the National Oceanic and Atmospheric Administration drew a lengthy response from Tom, which he posted on his Facebook account. He also provided a link in the comments section of my post (to view his response, you need a Facebook account, but do not need to have him on your friends list). The response only briefly addresses my post, but addresses some of Tom’s concerns about climate change. I felt it warranted a follow-up for a number of reasons, but I will spare my readers a point-by-point analysis, since most of the science-related points that Tom makes are easily addressed with a bit of modest research.

(Note that, since Tom’s Facebook profile is public, I felt it not inappropriate to post excerpts from his response for the purposes of this follow-up. Please read his entire response to get the full context and meaning of the included excerpts. This follow-up post was made here because I generally keep my Facebook account free from political and religious material.)

Tom questions my motivating principles because my “About” page says that this blog was created as a “way to take action against the flood of religious fundamentalism that has been slowly taking control of the United States of America.” I’m not sure how that would invalidate science, but further in the about page, the stated method of taking action is “by promoting rational thought and honest, intellectual questioning.” Promoting science, which I do here on a regular basis, is an effective way of promoting rational thought.

Tom breaks down the climate issue as follows:

Unfortunately, the debate over anthropological global warming (AGW) is no longer a purely scientific endeavor. It cannot be, since the potential consequences are global and political. One side argues that if we do nothing, we are doomed. They want governments to take action through policy and regulation. The other side argues that to take action is a veiled attempt to further the reach of government power into private enterprise and personal freedom, which will stifle economic growth, creativity and human dignity.

I would further his first statement and say that the “debate” over climate change (for so long as there has actually been debate) has never been purely scientific. The science itself has been and remains scientific (if you will pardon the redundancy), but the debate started because of politics. There is very little scientific disagreement over the conclusions of climate change science, despite the claims of deniers. Tom brings up the Global Warming Petition Project (also known as the Oregon Petition) and the Heidelberg Appeal as evidence of scientific disagreement, but used for that purpose, both documents are questionable at best.

The last sentence in the above quoted paragraph, summarizing Tom’s position, is the one I find most telling. It has the very strong appearance of promoting a political conspiracy theory. Indeed, much of Tom’s response is an admission that he looks at climate change science, not through an objective, scientific lens, but through a political one. I don’t think that can be stated strongly enough.

Tom is rejecting scientific facts because of his political ideology.

Here’s an excerpt from his post explaining why he is motivated to challenge the science behind Anthropological Global Warming (please read the whole post for context, though this excerpt stands on its own fairly well).

The conclusions of Biffa, Mann, et al, the CRU are championed by the IPCC which is an arm of the United Nations. The UN has clearly revealed its stripes as a bureaucracy which advocates and actively works for a global government. An unelected body, their veiled objective is redistribution of wealth and the demise of the United States as a leader in business, finance and innovation – all the while suckling off the teat of tax-payers. The technocrats behind AGW find their only solution in more government, more regulation, more taxation, taking away decision-making from business and private citizens.

If that doesn’t sound like conspiracy theory propaganda, I don’t know what does, but more importantly, it shows that the motivation for attempting to discredit climate change science does not come from finding objective flaws in the related science. It comes from political ideology. Everything else is just smoke and mirrors.

I find it very similar to “debates” about evolution. Since intelligent design creationists cannot accept evolution because of their biblical predispositions, they will come up with all kinds of arguments against evolution, none of which hold water. Not only that, but the arguments get recycled ad nauseum. See the Discovery Institute website or Answers in Genesis for plenty of examples.

It seems that climate change deniers have adopted the same strategy. Since they don’t want to accept the scientific research due to their ideological predispositions, they manufacture objections… manufacture controversies… manufacture scientific “flaws” in ongoing research… and accuse climate scientists of all kinds of shenanigans.

Tom mentions the standard canards such as Mann’s “hockey stick,” the medieval warming period, urban temperature stations, the CRU emails, sediment cores, and my favorite, Antarctic sea ice. All of these objections have either been shown irrelevant, understood and accounted for, and/or actually in support of climate change science. Most of the objections have been addressed long ago, but climate change deniers repeatedly trot them out to advance what seems to be a purely political agenda.

Tom continues with the political argument.

And those environmentalists who align themselves with draconian measures to stop so-called AGW, and handing over decisions to the UN – they show their illegitimacy when they reject nuclear power as a solution to reducing industrial and residential CO2 output. “Clean energy” – windmills, solar, geothermal – does not have near the efficiency or output to replace carbon-based energy sources. Clearly one of the objectives of the fanatical environmentalists is to return our standard of living to the pre-industrial era.

I’ve already said that none of the political issues invalidate the facts, but I think here, Tom is addressing a hypocrisy (with a dose of conspiracy thrown in) that he sees in those who accept the science. I haven’t heard others objecting to nuclear power, so I can’t comment on that other than to say that I have no problem with it. It’s clean, efficient, and provides a stable power base for our electrical grid all across the country. I do, however, find it somewhat amusing that he concludes that the objective of “fanatical environmentalists is to return our standard of living to the pre-industrial era.” …as if that’s the only alternative to inaction.

In his conclusion, Tom sets up some ecologically-friendly straw men to knock down, saying that deniers are painted as “indiscriminate environmental rapists” and that I claim that deniers are “religious fundamentalists hell-bent on extracting wealth from the environment.” I have no idea how he inferred that from my post, since the only mention of religion at all was in the following paragraph (and since I don’t believe it to be the case, anyway):

The fruits of science are all around us, yet the state of science literacy in our country is horrifyingly low. Not only do we have people who don’t understand science or how it works, but we have the much more harmful group of people who think they understand how science works and who think they have an understanding of scientific issues, but are hopelessly lost in an ideological quagmire created by politics, religion, or other insidious cultural influences.

One of my contentions about climate change deniers is that (I have found) most of them are either politically right-wing and/or very religious (not, as claimed, “religious fundamentalists hell-bent on extracting wealth from the environment”). Tom epitomizes this in his response by not only admitting that his rejection of climate science is based on political ideology, but by quoting bible passages in his conclusion in order to knock down the aforementioned straw men.

Tom’s concluding sentence:

I find the irony that the subject piece which has stirred my rebuttal is so entirely tone-deaf to its own strains of fundamentalism as it tries to teach us lesser vassals how we must think, and render homage to our more educated peers.

If my attempts to promote a scientific, reality-based, rational way of thinking are considered fundamentalist, so be it. Teaching people how to think (as opposed to what to think) is something this country could use. However, a blind appeal to authority is never warranted and I have not (nor have I ever) suggested that it should be.

If people choose which facts to believe based upon political ideology or religious dogma, they are abdicating an intellectual responsibility… and this country, this world, is weakened as a result.

I think a quote from Daniel Patrick Moynihan would be a fitting conclusion.

“Everyone is entitled to his own opinion, but not to his own facts.”

Tea baggers praying for Senator Byrd to die

Just a quick note to highlight a post by Jesse Galef on The Friendly Atheist blog.

The Washington Post reported an interesting statement by Senator Tom Coburn (emphasis mine).

[Senator] Robert Byrd was wheeled in at 1 a.m. to break a filibuster on the manager’s amendment. Byrd’s presence was not required, especially considering that he’d clearly telegraphed his intention to vote to break the filibuster. But Republicans forced him to travel to the chamber. Indeed, shortly before he arrived, Sen. Tom Coburn headed to the floor to propose a prayer. “What the American people ought to pray is that somebody can’t make the vote tonight,” he said. “That’s what they ought to pray.”

Putting aside the fact that prayer does nothing, that’s just nasty and uncalled for. Coburn doesn’t specifically say that he wishes Byrd would die or become too ill to make the vote, but it’s not hard to infer it from his words. Here’s a link to the video, which also includes Senator Dick Durbin’s request for clarification of Coburn’s remarks.

However, it gets worse. On a CSPAN program, a caller asked Senator John Barrasso what went wrong. Here’s the video. The transcript of what the caller asks is below.

httpv://www.youtube.com/watch?v=r0uxURKIFqU

The transcript of the caller’s words:

CALLER: Yeah doctor. Our small tea bag group here in Waycross, we got our vigil together and took Dr. Coburn’s instructions and prayed real hard that Sen. Byrd would either die or couldn’t show up at the vote the other night.

How hard did you pray because I see one of our members was missing this morning. Did it backfire on us? One of our members died? How hard did you pray senator? Did you pray hard enough?

Assuming the caller isn’t a Poe, I find two things appalling about this call. First, obviously, that the caller and his “tea bag group” actually got together and prayed that Senator Byrd would “either die or couldn’t show up.” That’s a pretty good example of evil and immorality right there.

The second thing that is just as troubling is the response from both the CSPAN commentator and Senator Barrasso. Neither of them even acknowledges the fact that a caller just openly admitted to getting a group together and praying for the death of a United States Senator. It’s as if they felt that it was a perfectly rational thing to do, therefore not deserving of any attention.

Jesse Galef said…

Obviously I don’t believe prayer will have an effect, but it says a lot about the people praying. It’s indicative of the sad state we’re in that I can’t tell whether the caller was sarcastic or not – those could have been tears or laughter making him choke up. But I’m astounded – and disgusted – that neither Barrasso nor the moderator commented on it.

Astounded and disgusted, indeed.