Wednesday, March 11, 2015

Piltdown Hoax

In 1912 at Piltdown, East Susses, England, Charles Dawson announced that he and colligues, Arthur Smith Woodward, and Pierre Teilhard de Chardin, discovered fossilized remains of an early human believed to have lived about 500,000 to a million years ago. The findings consised of skull fragments, a jawbone with 2 teeth, animals fossils and primitive stone tools. It suggested the skull belonged to an early human with large brain, which implied a level of intelligence grater than apes. The ape-like jawbone contained human-like teeth. The jawbone was that of an orangutan and was combined with the skull of a fully developed modern human except for the occiput ( the skull area pn the spinal column) and brian size . Woodward presented that Piltdown man represented the gap between apes and humans. Since the combination of human brain with an ape jaw offers to support the idea at the time that human evolution began with the larger brain before walking upright (now known to have occurred be the opposite).
This finding greatly affected early research on human evolution. Particularly, it led scientists down a dead end believing that the human brain expanded in size before the jaw adapted to omnivorous diet.  This finding justified scientist hypothesis.
Discoveries of other early human fossils around the world during the 1920s such as the skull in South Africa (Australopithecus) all showed jaws and teeth became human like before the large brain evolved. This was different from the large brain and ape-like jaw known from the Piltdown man. This confusion lasted decades. The testing and research over Piltdown man caused a large amount time and effort on the fossil. As the new findings differed and could not be ignored investigations on the Piltdown man began.
late 1940s, Kenneth Oakley,  biological anthropologist Joseph Weiner, and human anatomist Wilfrid Le Gros Clark examined the Piltdown fossil and found that the skull and jaw actually came from two different species, a human and an ape (orangutan).
In November 1953, the Natural History Museum announced the Piltdown man a fraud.
Human faults entangled with the Piltdown man case are scattered beginning with:
·       Dawson himself, for dishonesty seeking fame and glory into the Royal Society as represented in the more 38 fake finding through his career as an amateur scientist.
·       Sir Arthur Conan Doyle, religiously claiming that as a spiritualist he wanted to discredit the scientific establishment as revenge against the different views of science.
·       To the plot of Martin Hinton found case of fossils (bones and teeth) that had been stained similar to the Piltdown remains in the same manner as the Piltdown remains. The trunk was linked to Martin A.C. Hinton, a volunteer at the museum in 1912 who may have been seeking revenge against Woodward for not giving him a raise.
·       National pride and excitement was present and resulted in no further research of Dawson’s findings.
A microscope revealed that the teeth within the jaw had been filed down to make them look more human, and that many of the remains from the Piltdown site appeared to have been stained using iron solution and chromic acid to match each other.
Fluorine testing which is the process of calculating the amount of fluoride absorbed in the fossils, the time the object has been in the soil can be determined, revealed that the remains were only 50,000 instead of 500,000 years old as stated by Dawson. In even later examinations, carbon-dating technology showed that the skull was no more than 600 years old.
Many new techniques are available. Scientists and archaeologists are using the most up-to-date forensic techniques, including isotopic analysis to reveal where the fossils came from since different areas in the world have different isotopic compositions in their rocks. Sophisticated carbon dating and DNA analysis hope to show who the species the bones belonged since scientist now know the genome for orangutans.
It is not possible to remove human factors as scientist are still humans and all have instincts and motive. This is the start of how scientific theories are usually generated. Although dishonestly surfaces, inspiration also provides motivation and ambition to provide something better than what currently exists.
Scientists should continue to question findings. Aside from the faults listed above, it was a reminder that all findings need be evaluated and not assumed legitimate regardless of the source.

After further research I read that recently they have attempted several other testing methods such as DNA and isotopic analysis to reveal where the fossils came from and who the bones belonged to. I also came across a comment stating attempts to extract DNA from the skull fragments and jawbone have so far been frustrating as it seems the way the bones were boiled in chemicals by the hoaxer has destroyed any genetic material.

5 comments:

  1. Great post. I especially liked the breakdown on the faults at play with the hoax. There are so many different motives that these different individuals had that might make them put together such an elaborate hoax. Excellent life lesson, and I agree. Nothing should be assumed to be legitimate regardless of the source, without serious evaluation. Perhaps the Natural history museum of England stifled discovery of the Piltdown hoax (whether intentionally or unintentionally) because of the desire to keep this as a victory for England for as long as possible.

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  2. It's almost astonishing to think that this hoax was believed for around 40 years. Which ever one of the suspects whether it be Dawson, Sir Arthur Conan Doyle, or Martin Hinton, put this hoax together so elaborately that it is ingenious. I personally think that all three of them were in on it together. The story is very interesting but no matter what the truth was bound to come out. As more early human remains were being discovered things did not add up and it was only a matter of time before the hoax would be exposed. I also agree that this is a very valuable life lesson, not only to science but also in everyday situations. Information coming from an unverified source should always be questioned thoroughly and never just accepted right off the bat. This was a great lesson for science though and now the process of receiving new information i'm sure is a lot more carefully dealt with. Great post, i also read that the teeth are thought to have come from a chimpanzee before being filed down.

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  3. I liked your summary of the Piltdown hoax it was very detailed and helped me understand what the skull was actually made of and how it was discovered to be a hoax. I also liked your life lesson, its something that I feel that not only scientists should think about but something everyone should pay attention to and question everything they hear rather than believing what someone says. Nice post!

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  4. Your explanation of the Piltdown Hoax was very clear and easy to understand. It really showed how the skull was forged and why it fooled so many people. Also the life lesson was great! I completely agree! Great post.

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  5. Good synopsis with just a few points:

    "...which implied a level of intelligence grater than apes."

    Yes, you may be able to make that statement, but it is better to focus on what specific changes have been made in the brain compared to other primates or earlier hominids, such as a larger forebrain. The take-away message is that this suggested that larger brains developed relatively early in hominid evolution compared to other human-traits (which you do mention later).

    "The jawbone was that of an orangutan"

    But they didn't know that until after the hoax was exposed. The jaw was presented as a hominid jaw.

    Good and thorough explanation of the human faults involved in this case.

    Clear explanation of the technology used to uncover the hoax, but what about the process of the scientific method itself? What methodologies are exemplified here? Why were researchers still analyzing this fossil some 40 years after it was discovered?

    Good discussion the human factor and good life lesson.

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