Tag Archives: Ontogeny

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Did your science textbook teach that embryo drawings prove evolution?

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Jonathan Wells, a biologist with Ph.Ds from Yale and UC Berkeley, writes about one example of fake evidence here:

Charles Darwin thought that “by far the strongest” evidence that humans and fish are descended from a common ancestor was the striking similarity of their early embryos. According to Darwin, the fact that “the embryos of the most distinct species belonging to the same class are closely similar, but become, when fully developed, widely dissimilar… reveals community of descent.” 2 To illustrate this, German Darwinist Ernst Haeckel made some drawings in the 1860s to show that the embryos of vertebrates (fish, amphibians, reptiles, birds and mammals) look almost identical in their earliest stages.

But Haeckel faked his drawings. Not only do they distort vertebrate embryos by making them appear more similar than they really are (in a way that Stephen Jay Gould wrote “can only be called fraudulent” 3), but they also omit classes and stages that do not fit Darwin’s theory. Most significantly, Haeckel omitted the earliest stages, in which vertebrate embryos are strikingly different from each other. The stage he portrayed as the first is actually midway through development. Yet according to Darwin’s logic, early dis-similarities do not provide evidence for common ancestry.

Haeckel used his faked drawings to support not only Darwinian evolution, but also his own “Biogenetic Law,” which stated that embryos pass through the adult stages of their ancestors in the process of development.

…Haeckel’s drawings were exposed as fakes by his own contemporaries, and his Biogenetic Law was thoroughly discredited by 20th century biologists. It is now generally acknowledged that early embryos never resemble the adults of their supposed ancestors. A modern version of recapitulation claims that early embryos resemble the embryos of their ancestors, but since fossil embryos are extremely rare, this claim is little more than speculation based on the assumption that Darwin’s theory is true.

Now the standard response from Darwinists: no textbooks are still using the fraudulent embryo images.

You can see the actual faked pictures from the modern textbooks here. These textbooks were being produced as late as 2004, even though the fraud was detected in the 1800s! Is this the vaunted self-correction of science, or science being twisted to support social and political goals?

And this excerpt from that article is interesting:

Some Darwinists continue to deny that there has been any misuse of Haeckel in recent times. If that is the case, why did Stephen Jay Gould attack how textbooks use Haeckel in 2000? Gould wrote: “We should… not be surprised that Haeckel’s drawings entered nineteenth-century textbooks. But we do, I think, have the right to be both astonished and ashamed by the century of mindless recycling that has led to the persistence of these drawings in a large number, if not a majority, of modern textbooks!” (emphasis added) Similarly, in 1997, the leading embryologist Michael K. Richardson lamented in the journal Anatomy and Embyologythat “Another point to emerge from this study is theconsiderable inaccuracy of Haeckel’s famous figures. These drawings are still widely reproduced in textbooks and review articles, and continue to exert a significant influence on the development of ideas in this field.” (emphases added)

Finally, here is a link to the peer-reviewed journal Science, where there is an article talking about the fraudulent embryo drawings.

If this is what you were taught that convinced you of evolution, better take another look at the facts. You’ve been had.

News

How PBS uses your tax dollars to distort the evidence for evolution

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Evolutionists believe that the embryos of different mammals look similar in the earliest stages of development because the mammals share a common ancestor. And they believe that as the embryos develop, they begin to look less similar. This theory was invented by Ernst Haeckel, who believed that”ontogeny recapitulates phylogeny”.

With that mind, consider this post by embryologist Jonathan Wells at Evolution News, in which he describes PBS’s latest effort to use taxpayer dollars to push evolution on children, without any presentation of opposing views.

Excerpt:

On the website for its December 29 special, PBS offers an interactive “Guess the Embryo” exercise featuring four different vertebrate embryos: an 8 day-old mouse, a 5 day-old quail, a 17 day-old turtle, and a 40 day-old bat. The purpose of the exercise is to convince viewers that “embryos of different species can appear startlingly similar to one another.” A discerning viewer, however, will notice that the turtle embryo already has a rudimentary shell on its back—thus distinguishing it clearly from the others. A discerning viewer might also notice that the bat embryo bears little resemblance to the mouse embryo, even though both are mammals. What viewers may not know—and PBS does not tell them—is that the interactive exercise shows embryos midway through development. The earliest stages are systematically omitted. Perhaps this is because in their earliest stages vertebrate embryos are striking different from each other. They follow a pattern that embryologists call the “developmental hourglass”—wide at the top, narrow in the middle, and wide at the bottom. In other words, vertebrate embryos start out very different from each other, become superficially similar midway through development, then diverge again as they mature. Like Darwin’s German disciple Ernst Haeckel, PBS distorts vertebrate development to make it seem to provide evidence for Darwin’s theory.

As Wells notes, the embryological evidence actually shows that mammal embryos are different in the earliest stages, and similar in the middle stages of development. So embryological development Darwinian fundamentalist Ernst Haeckel’s embryo drawings were discredited as a fraud in the 19th century. The drawings also showed intermediate stages of embryo development – not the earliest stages.

Wells’ Ph.D in Biology is from the University of California at Berkeley. His area of specialization is embryology, in which he has conducted post-doctoral research.