Adventure Ausrama Blog

A 5,000 year old skeleton of a woman suffering from non-genetic dwarfism is found in China. Skeletal dysplasia resulted in proportionate dwarfism where the whole skeleton is small. It is rare in humans. Pediatric onset hypopituitarism and hypothyroidism is an underactive thyroid and pituitary gland. This individual would need support from others to survive. It indicates that a tight social structure existed in the community. Of course, the society did not know that iodine would have prevented the ongoing damage to the person's body. Even today Chinese people suffer more from iodine deficiency than Westerners because it is lacking in their diet. There is contentious debate among archaeologists about the treatment of those with dwarfism in Ancient Chinese society. Confucian texts written in the 4th century B.C. say that those with deformities were accepted as equals. However, accounts two centuries later indicate that people with dwarfism were pushed out to live with othe...

The fossil of a fish much like a piranha appears to be the earliest flesh-eating fish. It was found in Germany. Having teeth similar to a piranha it lived 150 million years ago. Remains of its victims were found nearby. It mainly ate the fins of fish. Evolving to consume only fins was a survival mechanism. Fish that were attacked did not die immediately. They survived to provide a meal another day. The hunter's teeth were triangular. With serrated edges, they were ideal for cutting flesh. Initially, bony fish could only bite chunks of flesh out of prey or swallow them whole. Slicing of flesh appeared much later. The hunting method of the fossilized fish was identical to modern-day piranhas. Injuries to the attacked were the same. The ancient specimen was a sea dweller. Piranhas live only in fresh water. Oddly, some piranhas are vegetarians mainly eating seeds. They are a normal food for South American people who say they taste like any other fish. It is not understood why they...

The discovery of new species in Australia is no longer a surprise. However, it is extremely interesting. Jumping (peacock) spiders,  Salticidae, are the largest family of the Araneae . Peacock spiders are so called because of their bright colors. Two new species have been identified. They are named Skeletorus,  Maratus sceletus, and Sparklemuffin,  Maratus jactatus . The former is black with white stripes and some blue in the background. It does look like a skeleton. Sparklemuffin is blue with a unique red pattern. Peacock spiders jump and dance around showing off their colorful abdomens. Due to prevalent predators males need to be seen by females to successfully breed and continue their existence. They have adapted well and have diversified into many types. ✴ Science by Ty Buchanan ✴ http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://adventure--australia.blogspot.com/atom.xml . . . . . . . . . ...

The Announcement that skeletons found in South Africa belong to a new species of Man 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. Paleoanthropologi...

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 f...

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...

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 struc...