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'Hobbit' fossils represent a new species, concludes University of Minnesota anthropologist
December 18, 2008Researchers compare cranial features using 3-D modeling
University of Minnesota anthropology professor Kieran McNulty (along with colleague Karen Baab of Stony Brook University in New York) has made an important contribution toward solving one of the greatest paleoanthropological mysteries in recent history -- that fossilized skeletons resembling a mythical "hobbit" creature represent an entirely new species in humanity's evolutionary chain.
Discovered on the Indonesian island of Flores in 2003, controversy has surrounded the fossilized hominid skeletons of the so-called "hobbit people," or Homo floresiensis ever since. Experts are still debating whether the 18,000-year-old remains merely belong to a diminutive population of modern-day humans (with one individual exhibiting "microcephaly," an abnormally small head) or represent a previously unrecognized branch in humanity's family tree.
Using 3D modeling methods, McNulty and his fellow researchers compared the cranial features of this real-life "hobbit" to those of a simulated fossil human (of similar stature) to determine whether or not such a species was distinct from modern humans.
"[Homo floresiensis] is the most exciting discovery in probably the last 50 years," said McNulty. "The specimens have skulls that resemble something that died a million years earlier, and other body parts reminiscent of our three-million-year-old human ancestors, yet they lived until very recently -- contemporaries with modern humans."
Comparing the simulation to the original Flores skull discovered in 2003, McNulty and Baab were able to demonstrate conclusively that the original "hobbit" skull fits the expectations for a small fossil hominin species and not a modern human. Their study was published online this month in the Journal of Human Evolution.
The cranial structure of the fossilized skull, says the study, clearly places it in humanity's genus Homo, even though it would be smaller in both body and brain size than any other member. The results of the study suggest that the theorized "hobbit" species may have undergone a process of size reduction after branching off from Homo erectus (one of modern day humanity's distant ancestors) or even something more primitive.
"We have shown with this study that the process of size reduction applied to fossil hominins accounts for many features seen in the fossil skull from Flores," McNulty said. "It becomes much more difficult, therefore, to defend the hypothesis that the preserved skull is a modern human who simply suffered from an extremely rare disorder.
Public interest in the discovery, analysis and implications of Flores "hobbits" has been high ever since 2003, inspiring several television specials (including a recent episode of "NOVA" entitled "Alien From Earth") and other media attention.
While the debate over Homo floresiensis will continue, McNulty believes this comprehensive analysis of the relationship between size and shape in human evolution is a critical step toward eventually understanding the place of the Flores "hobbits" in human evolutionary history.
"I think the majority of researchers favor recognizing this as a new species," McNulty said about the categorization of Homo floresiensis. "The evidence is becoming overwhelming, and this study helps confirm that view."
University of Minnesota
Using 3D modeling methods, McNulty and his fellow researchers compared the cranial features of this real-life "hobbit" to those of a simulated fossil human (of similar stature) to determine whether or not such a species was distinct from modern humans.
"[Homo floresiensis] is the most exciting discovery in probably the last 50 years," said McNulty. "The specimens have skulls that resemble something that died a million years earlier, and other body parts reminiscent of our three-million-year-old human ancestors, yet they lived until very recently -- contemporaries with modern humans."
Comparing the simulation to the original Flores skull discovered in 2003, McNulty and Baab were able to demonstrate conclusively that the original "hobbit" skull fits the expectations for a small fossil hominin species and not a modern human. Their study was published online this month in the Journal of Human Evolution.
The cranial structure of the fossilized skull, says the study, clearly places it in humanity's genus Homo, even though it would be smaller in both body and brain size than any other member. The results of the study suggest that the theorized "hobbit" species may have undergone a process of size reduction after branching off from Homo erectus (one of modern day humanity's distant ancestors) or even something more primitive.
"We have shown with this study that the process of size reduction applied to fossil hominins accounts for many features seen in the fossil skull from Flores," McNulty said. "It becomes much more difficult, therefore, to defend the hypothesis that the preserved skull is a modern human who simply suffered from an extremely rare disorder.
Public interest in the discovery, analysis and implications of Flores "hobbits" has been high ever since 2003, inspiring several television specials (including a recent episode of "NOVA" entitled "Alien From Earth") and other media attention.
While the debate over Homo floresiensis will continue, McNulty believes this comprehensive analysis of the relationship between size and shape in human evolution is a critical step toward eventually understanding the place of the Flores "hobbits" in human evolutionary history.
"I think the majority of researchers favor recognizing this as a new species," McNulty said about the categorization of Homo floresiensis. "The evidence is becoming overwhelming, and this study helps confirm that view."
University of Minnesota
Hobbit Current Events and Hobbit News RSS'Hobbits' are a new human species -- according to the statistical analysis of fossils
Researchers from Stony Brook University Medical Center in New York have confirmed that Homo floresiensis is a genuine ancient human species and not a descendant of healthy humans dwarfed by disease.
New analysis shows 'hobbits' couldn't hustle
A detailed analysis of the feet of Homo floresiensis-the miniature hominins who lived on a remote island in eastern Indonesia until 18,000 years ago-may help settle a question hotly debated among paleontologists: how similar was this population to modern humans?
Bone parts don't add up to conclusion of Palauan dwarfs
Misinterpreted fragments of leg bones, teeth and brow ridges found in Palau appear to be an archaeologist's undoing, according to researchers at three institutions. They say that the so-called dwarfs of these Micronesian islands actually were modern, normal-sized hunters and gatherers.
Micronesian Islands colonized by small-bodied humans
Since the reporting of the so-called "hobbit" fossil from the island of Flores in Indonesia, debate has raged as to whether these remains are of modern humans (Homo sapiens), reduced, for some reason, in stature, or whether they represent a new species, Homo floresiensis.
New research sheds light on 'hobbit'
An international team of researchers led by the Smithsonian Institution has completed a new study on Homo floresiensis, commonly referred to as the "hobbit," a 3-foot-tall, 18,000-year-old hominin skeleton, discovered four years ago on the Indonesian island of Flores.
FSU anthropologist confirms 'Hobbit' indeed a separate species
After the skeletal remains of an 18,000-year-old, Hobbit-sized human were discovered on the Indonesian island of Flores in 2003, some scientists thought that the specimen must have been a pygmy or a microcephalic — a human with an abnormally small skull.
Compelling evidence demonstrates that 'Hobbit' fossil does not represent a new species of hominid
What may well turn out to be the definitive work in a debate that has been raging in palaeoanthropology for two years will be published in the November 2006 issue of Anatomical Record.
Sensational find: The mini-dinosaurs from the Harz Mountains
When unusually small dinosaur fossils were found in a quarry on the northern edge of the Harz Mountains in 1998, it was initially assumed that these were the remains of a group of young dinosaurs.
Scientists scuttle claims that 'Hobbit' fossil from Flores, Indonesia, is a new hominid
When scientists found 18,000-year-old bones of a small, humanlike creature on the Indonesian island of Flores in 2003, they concluded that the bones represented a new species in the human family tree that they named Homo floresiensis.
DOE JGI sequences DNA from extinct cave bear
The genomic DNA sequencing of an extinct Pleistocene cave bear species-the kind of stuff once reserved for science fiction-has been logged into scientific literature thanks to investigators from the U.S. Department of Energy (DOE) Joint Genome Institute (JGI).
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