Adventure Ausrama Blog

Bracelet is made 40,000 years ago by Denisovan who used a tool like a drill to make holes of the same diameter in the jewelry. It was obviously made by a master craftsman. The bracelet is made of chlorite a silicate mineral usually green in color. Chlorite is the name of a group of common sheet silicate minerals that form during the early stages of metamorphism. Most chlorite minerals are green in color, have a foliated appearance, perfect cleavage, and an oily, soapy feel. They are found in igneous, metamorphic and sedimentary rocks. The body jewelry was found in the Denisovan cave in Siberia - the cave that the premodern hominids were named after. They were close enough genetically to Homo sapiens for inter-breeding to occur producing fertile offspring. The term "human" is now loosely used to include this species and back to Homo erectus. This find puts Denisovans ahead of Homo sapiens technologically. Denisovans were much older than Homo sapiens leaving Africa...

In the 20th century it was accepted that Australian Aboriginals had first arrived more than 50,000 years ago. Then science brought this forward to perhaps 40,000 years from the present. New research puts the date to at least 43,000 years in the desert. A rock shelter in the Australian Western Desert had human habitation until the end of the most recent Ice Age. Researchers now agree that occupation of Australia goes back over 60,000 years. A hafted multifunctional tool found at the desert site shows the tech was used 15,000 years earlier than believed. Aboriginal culture did advance technologically as they spread right across the continent probably within 10,000 years of their arrival. Rock art was developed in recent times, but it was a culmination of evolving adaptation. ◆  ANTHROPOLOGY   ◆ Tys Outback Amusing Animal Pics Odd Weird Things Reviews ● Vista Computer Answers . . . . . . . . ..........................

It was believed that early humans painted the cave art in Europe. Scientists are leaning toward associating this art with Neanderthals. The old theory surmised that humans created cave art soon after they moved into Europe from Africa. New tests show the paintings are older than first thought. They are now known to go back 41,000 years. This puts them clearly in the era of Neanderthals. Art was not a sudden achievement. It developed slowly over tens of thousands of years. The age of cave paintings was established by U-series dating. Samples of calcite that directly covered the paintings were taken. Paintings in El Castilo Spain were dated specifically to 40,800 years ago. Art in other Spanish caves were pushed back in time from 17,000 to 35,000 years. At this time humans were new to Europe but Neanderthals had been for there much longer. Early jewelry and use of ochre were part of Neanderthal culture. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia....

Glow worms can tell the time. Yes it's true! An Australian researcher has found that glow worms "light up" during daylight hours, even though they are in total darkness 24 hours a day. It is only a Tasmanian species of glow worm, however. Mainland species glow day and night. It is not known how they detect that it is daylight outside the cave. It is thought that a chimney effect occurs in a cave, whereby air is "breathed" in and out from outside. This probably causes a change in temperature. Glow worms possibly use the temperature stimulus to choose when to glow and when not to glow. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://www.feeds.feedburner.com/AdventureAustralia http://www.technorati.com/blogs/ http://adventure--australia.blogspot.com . . . . . . . . . . . . . . . . . . Biology

The Timor region is a fascinating place to study early humans. At the eastern end of East Timor fish hooks made from shells have been found. They were among bones of more than 2,800 fish. Jerimalai cave was a home for humans up to 42,000 years ago. The fish hooks were used between 23,000 and 16,000 years before the present. Deep sea pelagic fish were the target food. Tuna bones were abundant. Professor Sue O'Connor based at the College of Asia and the Pacific at the Australian National University led the research. The varieties of fish identified showed that ancient humans were skilled fishermen. Fishing for tuna is complex even today. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://www.feeds.feedburner.com/AdventureAustralia http://www.technorati.com/blogs/ http://adventure--australia.blogspot.com . . . . . . . . . . . . . . . . . . Anthropology