Featured Research

from universities, journals, and other organizations

Anthropologist Confirms 'Hobbit' Indeed A Separate Species

Date:
January 29, 2007
Source:
Florida State University
Summary:
After the skeletal remains of an 18,000-year-old, Hobbit-sized human were discovered on island of Flores in 2003, some scientists thought that the specimen must have been a human with an abnormally small skull. Not so, said Dean Falk, a world-renowned paleoneurologist and chair of Florida State University's anthropology department, in Tallahassee, Fla.

Dean Falk, a world-renowned paleoneurologist and chair of Florida State University's anthropology department.
Credit: Photo : Ray Stanyard

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.

Not so, said Dean Falk, a world-renowned paleoneurologist and chair of Florida State University's anthropology department, who along with an international team of experts created detailed maps of imprints left on the ancient hominid's braincase and concluded that the so-called Hobbit was actually a new species closely related to Homo sapiens.

Now after further study, Falk is absolutely convinced that her team was right and that the species cataloged as LB1, Homo floresiensis, is definitely not a human born with microcephalia -- a somewhat rare pathological condition that still occurs today. Usually the result of a double-recessive gene, the condition is characterized by a small head and accompanied by some mental retardation.

"We have answered the people who contend that the Hobbit is a microcephalic," Falk said of her team's study of both normal and microcephalic human brains published in the Jan. 29 issue of the journal PNAS (Proceedings of the National Academy of Sciences of the United States).

The debate stemmed from the fact that archaeologists had found sophisticated tools and evidence of a fire near the remains of the 3-foot-tall adult female with a brain roughly one-third the size of a contemporary human.

"People refused to believe that someone with that small of a brain could make the tools. How could it be a sophisticated new species?"

But that's exactly what it is, according to Falk, whose team had previously created a "virtual endocast" from a three-dimensional computer model of the Hobbit's braincase, which reproduces the surface of the brain including its shape, grooves, vessels and sinuses. The endocasts revealed large parts of the frontal lobe and other anatomical features consistent with higher cognitive processes.

"LB1 has a highly evolved brain," she said. "It didn't get bigger, it got rewired and reorganized, and that's very interesting."

In this latest study, the researchers compared 3-D, computer-generated reconstructions of nine microcephalic modern human brains and 10 normal modern human brains. They found that certain shape features completely separate the two groups and that Hobbit classifies with normal humans rather than microcephalic humans in these features. In other ways, however, Hobbit's brain is unique, which is consistent with its attribution to a new species.

Comparison of two areas in the frontal lobe, the temporal lobe and the back of the brain show the Hobbit brain is nothing like a microcephalic's and is advanced in a way that is different from living humans. In fact, the LB1 brain was the "antithesis" of the microcephalic brain, according to Falk, a finding the researchers hope puts this part of the Hobbit controversy to rest.

It's time to move on to other important questions, Falk said, namely the origin of this species that co-existed at the same time that Homo sapiens was presumed to be the Earth's sole human inhabitant.

"It's the $64,000 question: Where did it come from?" she said. "Who did it descend from, who are its relatives, and what does it say about human evolution? That's the real excitement about this discovery."

Falk's co-authors on the PNAS paper, "Brain shape in human microcephalics and Homo floresiensis," are Charles Hildebolt, Kirk Smith and Fred Prior of the Washington University School of Medicine in St. Louis; M.J. Morwood of the University of New England in Australia; Thomas Sutikna, E. Wayhu Saptomo and Jatmiko of the Indonesian Centre for Archaeology in Indonesia; Herwig Imhof of the Medical University of Vienna, Austria; and Horst Seidler of the University of Vienna, Austria.


Story Source:

The above story is based on materials provided by Florida State University. Note: Materials may be edited for content and length.


Cite This Page:

Florida State University. "Anthropologist Confirms 'Hobbit' Indeed A Separate Species." ScienceDaily. ScienceDaily, 29 January 2007. <www.sciencedaily.com/releases/2007/01/070129171908.htm>.
Florida State University. (2007, January 29). Anthropologist Confirms 'Hobbit' Indeed A Separate Species. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2007/01/070129171908.htm
Florida State University. "Anthropologist Confirms 'Hobbit' Indeed A Separate Species." ScienceDaily. www.sciencedaily.com/releases/2007/01/070129171908.htm (accessed July 31, 2014).

Share This




More Fossils & Ruins News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Where Did The World Trade Center Shipwreck Come From?

Where Did The World Trade Center Shipwreck Come From?

Newsy (July 31, 2014) Scientists say a ship remnant discovered underneath Ground Zero dates back to the 18th century. Why it sank is still uncertain. Video provided by Newsy
Powered by NewsLook.com
Rodents Rampant in Gardens Around Louvre

Rodents Rampant in Gardens Around Louvre

AP (July 29, 2014) Food scraps and other items left on the grounds by picnickers brings unwelcome visitors to the grounds of the world famous and popular Louvre Museum in Paris. (July 29) Video provided by AP
Powered by NewsLook.com
London's Famed 'Gherkin' Goes on Sale for 650 Mln

London's Famed 'Gherkin' Goes on Sale for 650 Mln

AFP (July 29, 2014) London's "Gherkin" office tower, one of the landmarks on the British capital's skyline, went on sale for about 650 million ($1.1 billion, 820 million euros) on Tuesday after being placed into receivership. Duration: 00:36 Video provided by AFP
Powered by NewsLook.com
Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Newsy (July 28, 2014) The asteroid that killed the dinosaurs struck at the worst time for them. A new study says that if it hit earlier or later, they might've survived. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins