Sunday, April 13, 2014

Fresh from raging at Neil deGrasse Tyson over the new "Cosmos" series, Creationists turn their attention to a new, and potentially more unsettling, science based program.

Courtesy of Mother Jones:  

We all know the Darwin fish, the car-bumper send-up of the Christian "ichthys" symbol, or Jesus fish. Unlike the Christian symbol, the Darwin fish has, you know, legs. Har har. 

But the Darwin fish isn't merely a clever joke; in effect, it contains a testable scientific prediction. If evolution is true, and if life on Earth originated in water, then there must have once been fish species possessing primitive limbs, which enabled them to spend some part of their lives on land. And these species, in turn, must be the ancestors of four-limbed, land-living vertebrates like us. 

Sure enough, in 2004, scientists found one of those transitional species: Tiktaalik roseae, a 375 million-year-old Devonian period specimen discovered in the Canadian Arctic by paleontologist Neil Shubin and his colleagues. Tiktaalik, explains Shubin on the latest episode of the Inquiring Minds podcast, is an "anatomical mix between fish and a land-living animal." 

"It has a neck," says Shubin, a professor at the University of Chicago. "No fish has a neck. And you know what? When you look inside the fin, and you take off those fin rays, you find an upper arm bone, a forearm, and a wrist." Tiktaalik, Shubin has observed, was a fish capable of doing a push-up. It had both lungs and gills. In sum, it's quite the transitional form. 

Shubin's bestselling book about his discovery, Your Inner Fish: A Journey Into the 3.5-Billion-Year History of the Human Body, uses the example of Tiktaalik and other evolutionary evidence to trace how our own bodies share similar structures not only with close relatives like chimpanzees or orangutans, but indeed, with far more distant relatives like fish. Think of it as an extensive unpacking of a famous line by Charles Darwin from his book, The Descent of Man: "Man still bears in his bodily frame the indelible stamp of his lowly origin."

The PBS series based on Neil Shubin's incredible work is due to premiere Wednesday. So of course it has irritated the proponents of Intelligent Design/Creationists.

As some of you may know Creationists love to harp on the gap in the fossil record as proof that Evolution does not prove that man evolved over time from more primitive life forms.

To be honest it has always confused me as they choose to completely ignore the overwhelming evidence in the fossils we HAVE uncovered, and focus instead on the ones that they believe are still missing. Kind of like if you were putting a jigsaw puzzle of a jaguar together, and though the assembled pieces clearly show that it is in fact a jaguar, because there are one or two missing pieces certain people refuse to see it.

That is why this discovery is especially consternating to the Creationists, as it adds yet another important piece to the puzzle.

So of course it must be refuted.

Courtesy of Raw Story:

Prominent creationist Elizabeth Mitchell reviewed the show for Answers In Genesis, and she was unimpressed by the manner in which Shubin allegedly “juxtaposes factual human anatomy with tiresome tales that misleadingly suggest [his] evolutionary interpretations superimposed on the fossils, genetics, embryology, and anatomy in the episode are as trustworthy as the observational science.” 

The common design of of Tiktaalik limbs and human hands “is consistent with the biblical account,” she wrote. “It only makes sense that a wise Creator, the Common Designer of all living things, would use this versatile, stable skeletal pattern in countless different kinds of creatures.” 

Mitchell then tackled Shubin’s claim that the location of the male reproductive organ on the outside in humans is evidence is another indication that “flaws in the human body, like our susceptibility to hernias, remind us that we’re all adapted from ancient ancestors; we are, every one of us, just a jury-rigged fish.” 

She found “several problems with that statement,” foremost among them — that it contradicted the Bible. “God designed a perfect human body along with a perfect world in the beginning,” she wrote.

Part of my problem with the Creationists, besides the fact that they insist that every question as yet unanswered by science proves the existence of God, is their contention that we were created perfect.

This idea of perfection, is decidedly imperfect.

For instance as human beings our olfactory nerves are pathetic as compared to many of our fellow mammals, our eyesight is a joke, our physical strength would put us quite near the bottom of the food chain if our brains did not compensate so well, and our bodies are fragile machines prone to malfunction, disease, and an expiration date after only about 75 years or so.

There is nothing perfect about us.

In fact as most evolutionary biologists know, we are a transitional lifeform ourselves, as are all creatures on the planet.

And recognizing that fact means that learning we have evolved from apes, fish, or ultimately single cell creatures, should not be seen as an insult, but rather an amazing accomplishment.

Unlike religion, science does not define mankind as a fallen race, in need of salvation from a micro managing sky daddy, but rather a miracle of evolution for whom the journey toward the eventual  destination of our species is really only just beginning.

20 comments:

  1. Anonymous2:38 PM

    Re: fish with legs--back in the early 2000s, my family spent a week in Norfolk for a military training class for my spouse. I took the kids to nearby Virginia Beach to the aquarium, where my 4-year-old discovered that the dolphin skeleton hung from the ceiling, "Has fingers just like a people!" and wanted to know why. I explained that dolphins were mammals just like people and dogs were mammals, and dolphins evolved from animals that used to live on land, and therefore their skeleton has "fingers", even though their skin is flippers that help them swim. A docent approached me and told me not to speak about that because they'd had complaints from some of their visitors that I spoke about evolution. Also, too, it's in poor taste to notice that dolphins (and whales) have skeletons that look like land-mammals in Falwell country. @@

    ReplyDelete
    Replies
    1. Anonymous3:45 PM

      Man,I would have bought a membership and taken my kids as often as possible, and lectured them in my 700 seat lecture hall voice.

      Delete
    2. To prevent sheeples from seeing those handbones, they should put a burqa on that dolphin skeleton.

      And on any other troublemakers in the collection, also too.

      Of course, the best solution for wanderlusty evolution deniers is to avoid visiting reality-centric museums and focus their travels on bible-friendly fantaseums like the Creationarium near Foolhardy, Kentucky. That'll learn 'em!

      Delete
    3. Anonymous8:27 AM

      Wrap it in a burqa or at the very least, some gloves and a nice scarf. The scarf will also provide cover if the specimen was pregnant from living too vibrantly. Dolphins are fertile also, too.

      Delete
  2. Leland2:42 PM

    "...in need of salvation from a micro managing sky daddy..."

    Micro-managing? Since when? If he IS doing that (assuming for a second he actually exists) then he sure as hell is missing a tremendous amount of human caused starvation, genocide for religious reasons, infanticide, trafficking in human beings and every other sort of crime we as a species can come up with!

    Micro-managing my ass!

    ReplyDelete
    Replies
    1. He only micromanages your sex life, and punishes you for having one not sanctified by marriage, or involving two sets of the same genitalia.

      I mean there are only so many hours in the day.

      Delete
    2. An European Viewpoint3:27 AM

      And the guy is so not into this life and death of innocents business. Been there, done that, deluge and all.

      But humans having sex, that's something he'll never get tired of, hell yeah !

      Delete
  3. Anonymous3:00 PM

    I like Rustin Cohle's explanation regarding the flaws of humans from True Detective:

    "I think human consciousness is a tragic misstep in evolution. We became too self-aware. Nature created an aspect of nature separate from itself. We are creatures that should not exist by natural law. We are things that labor under the illusion of having a self, a secretion of sensory experience and feeling programmed with total assurance that we are each somebody, when in fact everybody's nobody. I think the honorable thing for our species to do is deny our programming; stop reproducing; walk hand-in-hand into extinction. One last midnight, brothers and sisters opting out of a raw deal."

    ReplyDelete
    Replies
    1. Anonymous3:46 PM

      Ans every suicide is testament to the truth of Cohle's explanation/

      Delete
    2. Anonymous4:20 PM

      3:46pm

      And suicide isn't always the worst thing. Some people just don't want to put the effort into this thing called living. Personal choice, just like abortion, some actions should be left to the individual and no one else. Without the constraints of religions that consider suicide a "sin" and a "ticket to eternal damnation" suicide is often seen as a brave and nobel choice as with Seppuku or the Kamikaze aviators.

      Suicide is only anathema in certain cultures and religions but considered acceptable and even laudable in others. There are enough people on this planet and if someone chooses to cease life on their own terms it really is no one else's concern.

      Delete
    3. An European Viewpoint3:20 AM

      Except if that person has small dependent kids who would benefit from the presence of the said person.

      And that's mostly the case in suicided parents : parents who are unfit for raising children lack the empathy to suicide themselves out, either for their own good or for the good of others. Like pedophiles and other sociopaths, who lead long, destructive lives.

      Delete
    4. Anonymous5:04 AM

      Here's a T-shirt idea my husband came up with
      regarding the planet's human over-population --

      Save the planet: off yourself.

      Delete
  4. First things, first.

    Why are we even talking about this new-fangled crazy godless alternative for Creationism when we haven't yet resolved the old-fangled controversy raging over whether the earth is totally flat or slightly less flat?

    At least for us flat-earthers, we have evidence on our side: I can look down the street and see how flat it is.

    Everything in due time, I always say.

    ReplyDelete
    Replies
    1. Anonymous1:20 AM

      Beldar?

      If so, you crack me up on Gryph's 'defunct blog.'. Flat-earthers indeedy! Too and also.

      dowl

      Delete
  5. Olivia3:11 PM

    I saw "Your Inner Fish" last week and it was very good. It was interesting and they do a great job of explaining things in a way that anyone can understand, unless, of course, you are a person who has your fingers plugging your ears and you are screaming loudly, LALALALALA, I CAN'T HEAR YOU!!!"

    ReplyDelete
  6. Anonymous3:24 PM

    Sarah Palin hasn't evolved very well...

    ReplyDelete
    Replies
    1. An European Viewpoint3:24 AM

      Why would you say that, she can even stand almost unaided, if provided with somethig to lean on, such as a purse carrier or a window facing a brick wall.

      Delete
  7. Anonymous3:44 PM

    ever wonder which populations of humans will devolve or go extinct? Then realize that politics is the arena that battle is being fought in?

    ReplyDelete
  8. Anonymous4:16 PM

    Caught the first of this series online, and it has very cool computer animations. Love this sort of thing. The PBS site also has several short videos in addition to the first fill episode.

    As soon as I started watching, I thought how upset the Creationist Taliban would be!

    PS I always thought the term was jerry-rigged, but a quick Google informed that jury, gerry, and jerry are all used, and perhaps jerry/gerry might be offensive to Germans, which I never put two and two together,even though I heard my father refer to the japs and the gerrys when he talked about WWII, and I knew he really shouldn't use those terms. So perhaps jury-rigged it is from now on.

    But again, the computer animation really helps me visualize things on that show; they did a great job.

    The church of the Flying Sphagetti Monster would insist that God just made it look as though there were transitional forms, and then they would also insist that you were free to believe that or not believe that, on your own prerogative, so long as you love your fellow man and strive to keep the planet intact for the next generation. ;)

    ReplyDelete
  9. Anita Winecooler4:35 PM

    It's shows like this one that make me proud to donate to PBS. Back in the dark ages, when I was in high school, there was a scientist who explained that we all came from the sea. The first "hint" was the fluid surrounding a fetus of any live bearing species.
    The creationists can't possibly understand because it negates the need for the whole Noah's Ark fable.

    ReplyDelete

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