Studies say 'hobbit' previously unknown species
A photo from the University of Wollongong in Australia shows an artist's impression of a human species.
The tiny ancient humans dubbed hobbits, whose remains were discovered on an Indonesian island in 2003, were a previously unknown species altogether, according to two new studies.
Debate has raged in the scientific community since the fossils were found on the island of Flores, with some experts insisting they were descended from Homo erectus and others saying evolution could not account for their small brains.
About a metre (three feet) tall and weighing 30 kilos (65 pounds), the tiny, tool-making hunters may have roamed the remote island as recently as 8,000 years ago. Their fossils are about 18,000 years old.
Many scientists have said Homo floresiensis, as the creature is now formally known, was a prehistoric human stunted by natural selection over millennia through a process called insular dwarfing.
Others countered that even this evolutionary shrinking, well documented in island-bound animals, could not account for the chimpanzee-sized brain -- just a third the size of that in a modern human being.
The only plausible explanation, they insisted, was that the handful of specimens found had a genetic disorder resulting in an abnormally small skull or that they suffered from "dwarf cretinism" caused by deficient thyroids.
Two new studies in the British journal Nature go a long way toward settling the debate.
A team led by William Jungers of Stony Brook University in New York tackled the problem by analysing the hobbit's foot.
In some ways it is very human. The big toe is aligned with the others and the joints make it possible to extend the toes as the body's full weight falls on the foot -- attributes not found in great apes.
But in other respects it is startlingly primitive: far longer than its modern human equivalent and equipped with a very small big toe, long and curved lateral toes, and a weight-bearing structure closer to a chimpanzee's.
Recent archaeological evidence from Kenya shows that the modern foot evolved more than 1.5 million years ago, most likely in Homo erectus.
So unless the Flores hobbits became more primitive over time -- considered extremely unlikely -- they must have branched off the human line at an even earlier date.
For Jungers and colleagues, this suggests their ancestor was not Homo erectus "but instead some other more primitive hominin whose dispersal into southeast Asia is still undocumented."
Companion studies published by the Journal of Human Evolution bolster this theory and conjecture that these more ancient forebears may be the still poorly understood Homo habilis.
In any case, Homo floresiensis would be confirmed as a separate species.
But what still has not been explained the hobbit's inordinately small brain.
That's where hippos come into the picture.
Eleanor Weston and Adrian Lister of the Natural History Museum in London compared fossils of several species of ancient hippos found on the island of Madagascar with the mainland ancestors from which they had evolved.
They were surprised to find that insular dwarfing -- driven by the need to adapt to an island environment -- shrank their brains far more than had previously been thought possible.
"Whatever the explanation for the tiny brain of H. floresiensis relative to its body size, our evidence suggests that insular dwarfing could have played a role in its evolution," they conclude.
While the new studies answer some questions, they also raise new ones sure to spark fresh debate, Harvard professor Daniel Lieberman said in Nature.
Only more fossil evidence will indicate whether the hobbits of Flores evolved from Homo erectus, whose traces have been found throughout Eurasia, or from an even more ancient lineage not yet found outside Africa, he said.
The Mystery of the Human Hobbit (Video)
New twist in Hobbit-human debate
Master of ‘Rings’ to Tackle ‘Hobbit’
Yes, it's a Hobbit. The debate that has divided science is solved at last (sort of)
Ancient 'Hobbit' not a malformed human
Hobbit cave digs set to restart
Lloyd Pye - Everything you Know is Wrong (Video)
Bigfoot hobbit could be ancient island human
Latest News from our Front Page
An Occupied Country
When people refer to occupation governments or occupied countries, the first thought is often of military occupation—the garrisoning of foreign troops in one’s cities and civil administration by their military executives. The other vision is the trope of a cabal of Haredim sitting in a darkly-lit boardroom with a map of the world on the wall, a dated reading of ...
Immortal Symbols 1941
Youtube description: Dutch film "Eeuwig Leevende Tekens" by Hamer - "Volksche Werkgemeenschap" (Folkish Study Group) - ancestral heritage, solar wheel, sun cross, tree of life, etc.
Subs by Otharus - http://fryskednis.blogspot.com
Ex-German media boss admits on live radio the national news agenda is govt controlled
f you really want a lesson in how the Western popular press works, this is it.
Without question, Germany is the leading power in Europe. ZDF is its state broadcaster and most popular channel.
Together with sister network ARD; German's are obliged to pay €17.98 per month to fund it.
This week, during a radio event in Berlin, the retired head of ZDF ...
British teenager is gang raped by 'Moroccan' men after being dragged into a car in Spain
A British teenager claims to have been gang-raped in a Spanish resort after being dragged into a car by a group of Moroccan men, it was reported today.
The 18-year-old claimed she was attacked while walking home from work late at night in Sabinillas, near Marbella.
Police are said to be investigating a group of Moroccan men in the area.
A British teenager ...
8 Ways Racially Diverse Schools Hurt White Kids
Description from YouTube:
I argue against Mother Jones Propaganda
Link to the original Mother Jones Article: 3 Ways White Kids Benefit Most From Racially Diverse Schools
Links to all the articles and other citations mentioned in my video can be found here: docdro.id/6CpKvgA
|More News » |