trying find

Showing posts with label skeleton. Show all posts

Tuesday, May 31, 2011

Agriculture Was Brought into Western Europe by Southern European Males

Learning has not been linear for human beings. Advancement can be different from one place to another. It is now known from DNA analysis of 5,000 year old skeletons in a French cave that women did not travel into western Europe. Mitochondrial DNA is passed down only from the mother which shows that European women had local ancestry. On the other hand the Y chromosome passed down through males shows movement of males into new European regions. Knowledge of farming came into new areas when the males moved in and mated with local females.

Analysis of DNA from 29 skeletons found in France, highlighted this difference between the mitochondrial DNA and Y chromosome. Males had moved from the Mediterranean to western Europe. Most of the males in the 29 skeleton group were related, so when the males arrived they stayed on the land with their new hunter gatherer wives.

The southern males had a problem: they did not have the lactose tolerant gene of central Europeans. They had to drink fermented milk from sheep and goats. Adult central European males could easily digest milk from cows.

More work is being done to further clarify how and when agriculture spread across Europe.

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http://adventure--australia.blogspot.com

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History

Wednesday, December 22, 2010

New Kind Human Found Which Challeges Darwinian Theory

A new find of human remains challenges Darwinian theory. Science was absolutely certain that for the past 80,000 or so years only humans and Neanderthals wandered the earth. First the "hobbit" on the island of Flores was found which showed that other hominids lived almost to the present time in remote parts of the world. Now a new human species has come to light in Mongolia. The DNA from a child's finger indicates a separate species. Denisova is the name given to the new humans after the region where it was found.

For many years it was believed animals with a different number of chromosomes could not interbreed. This premise is now brought into question. Neanderthal DNA has been identified in human DNA. This finding makes the discovery of our origins almost impossible. With no clear distinction between species how do you put them into categories?

Denisova and humans diverted from a common ancestor about a million years ago. Neanderthals and humans separated from their ancestor half a million years ago. If interbreeding was commonplace Man's history will be blurred. The offspring of parents from two types of hominids will carry traits from both variations. Finding remains of distinct species will be more difficult. For the most part, however, bones and fossils of different hominids are being found. Perhaps cross breeding was not the norm.

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Saturday, October 30, 2010

Placating the Beliefs of Others

Religion goes too far. We live in a world where people are living in fear of the belief of others. Supposedly, we all live in technologically advanced societies, but where is the acceptance of scientific fact? Despite all the evidence many still reject the evolutionary scientific premise, believing that Mankind was created just 5,000 years ago.

As John Lennon said "Imagine there is no religion." In Australia when the ABC shows a television program which is partially aimed at Aboriginals a warning is given that the program shows deceased people. This is given "in fear" of offending religious belief. We can't go on appeasing those who want to control others. Let's face it When we pass from this life that is the end. We should not be so arrogant as to believe that we are somehow special in the eyes of a paternalistic creator.

Museums are now cowering from pressure groups. Mummies are being withdrawn from public view because some say they should be left to rest in spiritual peace. Even museum staff support this. Signs are being put up warning visitors that deceased people are close by. Even pagans have managed to get the skull of the iron age Worsley Man withdrawn from display.

It seems that people are living in fear of death itself, because that is what it truly is. Peering around the side of a partially covered coffin to see a mummy does not protect the deceased from scientific reality - that all of the mummy's gods could not save it from death.

A lion has no respect for the body of the antelope it has killed. Why do humans have this desire to show extreme respect for those who have been dead for thousands of years? Giving skeletons "privacy" to slumber is ridiculous. Ninety percent of people want to see ancient remains openly displayed with no restriction. Scientific research could be stopped in its tracks if the restrictive line of behavior continues.

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Thursday, April 29, 2010

Australpithecus sediba Is Not an Ancestor of Man

The Announcement that skeletons found in South Africa belong to a new species is premature.They were found in a cave near Johannesburg. The "new species" was named Australopithecus sediba. It was claimed to be the "rosetta stone" into the past. They were also the most complete skeletons ever discovered. The creatures walked upright, had long arms and powerful hands. Unfortunately, they were small brained.

Paleoanthropologists not involved in the find say the name chosen is just a "wastebasket" category. They are not ancestors of Man. Furthermore, some animals in the species could have had larger or smaller brains. It could still be transitional in evolution to Man, but very distant.

It may fit into Homo. Perhaps it is a sister species to Homo habilis. The brain size of Australopithecus sediba is the same as Homo floresiensis, the Hobbit, of Indonesia. The features in sediba are similar to those in other Homo species. Paleoanthropologists put very early finds in Homo. Sediba is not so unique as to have a lineage of its own. Indeed, Australopithecus africanus is older than sediba and africanus does have unique lineage. Sediba is too primitive to be a direct ancestor of Man. Older Homo species have features more like Man that sediba.

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Thursday, March 18, 2010

The Hobbit a Small Human on Flores Is Proven

Many people have written off the "hobbit" find as being just a joke, a sad hoax played on society. However, finding tiny "humans" is, apparently, real. Most scientists have accepted it though some still scoff at the whole issue without looking into it.

In 2004 archaeologists in Indonesia found skeletons, not fossils, skeletons of small human-like creatures who lived on the island of Flores as recently as 18,000 years ago. While humans spread around the world, these small "humans" carried on hunting pygmy elephants and other local species in isolation. Flint flakes found in million year old volcanic sediment show hobbit activity there a very long time ago.

The question is - When did the early humans leave Africa? Considering Man left the continent no more than 100,000 years ago why did other excursions of early man end in extinction? At least one group survived long enough to enlighten us about the numerous times humans left Africa. Evidence from bone structure shows that the hobbit descended from an earlier type of human than the small-brained Homo erectus which left two million years ago.

Spending time considering how hobbit came to be on Flores is quite irrelevant. Whether they went by boat, raft or just walked when a land bridge appeared, they got there and thrived.

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