http://www.networlddirectory.com/blogs/archeology-blog.html Archeology blog from networlddirectory, the place for information. Mon, 18 Jul 2011 14:37:15 GMT en-us http://www.networlddirectory.com/images/blogs/archeology-blog.jpg http://www.networlddirectory.com/blogs/archeology-blog.html 112 83 http://www.networlddirectory.com/blogs/permalinks/7-2011/what-keeps-the-earth-cooking.html http://www.networlddirectory.com/blogs/permalinks/7-2011/what-keeps-the-earth-cooking.html Mon, 18 Jul 2011 14:37:15 GMT What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes around the world to estimate that some 44 terawatts (44 trillion watts) of heat continually flow from Earth's interior into space. Where does it come from?........ ]]> http://www.networlddirectory.com/blogs/permalinks/7-2011/non-africans-are-part-neanderthal.html http://www.networlddirectory.com/blogs/permalinks/7-2011/non-africans-are-part-neanderthal.html Mon, 18 Jul 2011 14:37:15 GMT Some of the human X chromosome originates from Neanderthals and is found exclusively in people outside Africa, as per an international team of scientists led by Damian Labuda of the Department of Pediatrics at the University of Montreal and the CHU Sainte-Justine Research Center. The research was reported in the recent issue of Molecular Biology and Evolution. ....... ]]> http://www.networlddirectory.com/blogs/permalinks/5-2011/seeing-hidden-building-blocks-of-life.html http://www.networlddirectory.com/blogs/permalinks/5-2011/seeing-hidden-building-blocks-of-life.html Mon, 18 Jul 2011 14:37:15 GMT Researchers from Finland and France have developed a new synchrotron X-ray technique that may revolutionize the chemical analysis of rare materials like meteoric rock samples or fossils. The results have been published on 29 May 2011 in Nature Materials as an advance online publication. Life, as we know it, is based on the chemistry of carbon and oxygen. The three-dimensional distribution of their abundance and chemical bonds has been difficult to study up to now in samples where these elements were embedded deep inside other materials. Examples are tiny inclusions of possible water or other chemicals inside martian rock samples, fossils buried inside a lava rock, or minerals and chemical compounds within meteorites........ ]]> http://www.networlddirectory.com/blogs/permalinks/5-2011/bird-crocodile-family-trees-split.html http://www.networlddirectory.com/blogs/permalinks/5-2011/bird-crocodile-family-trees-split.html Mon, 18 Jul 2011 14:37:15 GMT A fossil unearthed in China in the 1970s of a creature that died about 247 million years ago, originally believed to be a distant relative of both birds and crocodiles, turns out to have come from the crocodile family tree after it had already split from the bird family tree, as per research led by a University of Washington paleontologist........ ]]> http://www.networlddirectory.com/blogs/permalinks/3-2011/mesopotamian-cities-in-iraqi-marshes.html http://www.networlddirectory.com/blogs/permalinks/3-2011/mesopotamian-cities-in-iraqi-marshes.html Mon, 18 Jul 2011 14:37:15 GMT Learn more about the Iraqi marshes and the origins of Mesopotamian cities in this photo gallery and video. Three National Science Foundation-supported scientists recently undertook the first non-Iraqi archaeological investigation of the Tigris-Euphrates delta in nearly 20 years. Archeologists Jennifer Pournelle and Carrie Hritz, with geologist Jennifer Smith, carried out the study late last year to look for links between wetland resources and the emergence of Mesopotamian cities........ ]]> http://www.networlddirectory.com/blogs/permalinks/3-2011/algae-and-bacteria-hogged-oxygen.html http://www.networlddirectory.com/blogs/permalinks/3-2011/algae-and-bacteria-hogged-oxygen.html Mon, 18 Jul 2011 14:37:15 GMT A mass extinction is hard enough for Earth's biosphere to handle, but when you chase it with prolonged oxygen deprivation, the biota ends up with a hangover that can last millions of years. Such was the situation with the greatest mass extinction in Earth's history 250 million years ago, when 90 percent of all marine animal species were wiped out, along with a huge proportion of plant, animal and insect species on land........ ]]> http://www.networlddirectory.com/blogs/permalinks/3-2011/worlds-oldest-pteranodon.html http://www.networlddirectory.com/blogs/permalinks/3-2011/worlds-oldest-pteranodon.html Mon, 18 Jul 2011 14:37:15 GMT Fossilized bones discovered in Texas from a flying reptile that died 89 million years ago appears to be the earliest occurrence of the prehistoric creature known as Pteranodon. Previously, Pteranodon bones have been found in Kansas, South Dakota and Wyoming in the Niobrara and Pierre geological formations. This likely Pteranodon specimen is the first of its kind found in Texas, as per paleontologist Timothy S. Myers at Southern Methodist University in Dallas, who identified the reptile. The specimen was discovered north of Dallas by an amateur fossil hunter who found various bones belonging to the left wing........ ]]> http://www.networlddirectory.com/blogs/permalinks/2-2011/oldest-fossils-of-large-seaweeds.html http://www.networlddirectory.com/blogs/permalinks/2-2011/oldest-fossils-of-large-seaweeds.html Mon, 18 Jul 2011 14:37:15 GMT Almost 600 million years ago, before the rapid evolution of life forms known as the Cambrian explosion, a community of seaweeds and worm-like animals lived in a quiet deep-water niche near what is now Lantian, a small village in south China. Then they simply died, leaving some 3,000 nearly pristine fossils preserved between beds of black shale deposited in oxygen-free and unbreathable waters........ ]]> http://www.networlddirectory.com/blogs/permalinks/2-2011/testing-the-limits-of-where-humans-can-live.html http://www.networlddirectory.com/blogs/permalinks/2-2011/testing-the-limits-of-where-humans-can-live.html Mon, 18 Jul 2011 14:37:15 GMT On an isolated segment of islands in the Pacific Ring of Fire, residents endure volcanoes, tsunamis, dense fog, steep cliffs and long and chilly winters. Sounds homey, huh? At least it might be for inhabitants of the Kuril Islands, an 810-mile archipelago that stretches from Japan to Russia. The islands, formed by a collision of tectonic plates, are nearly abandoned today, but anthropologists have learned that thousands of people have lived there on and off as far back as at least 6000 B.C., persevering despite natural disasters........ ]]> http://www.networlddirectory.com/blogs/permalinks/2-2011/archaeologists-find-hidden-african-side.html http://www.networlddirectory.com/blogs/permalinks/2-2011/archaeologists-find-hidden-african-side.html Mon, 18 Jul 2011 14:37:15 GMT One of North America's most famous Revolutionary-era buildings � a lone-surviving testament to an Enlightenment ideal � has a hidden West African face, University of Maryland archaeologists have discovered. Their excavation at the 1785 Wye �Orangery� on Maryland's Eastern Shore � the only 18th century greenhouse left in North America � reveals that African American slaves played a sophisticated, technical role in its construction and operation. They left behind tangible cultural evidence of their involvement and spiritual traditions........ ]]> http://www.networlddirectory.com/blogs/permalinks/2-2011/earliest-cemetery-in-middle-east.html http://www.networlddirectory.com/blogs/permalinks/2-2011/earliest-cemetery-in-middle-east.html Mon, 18 Jul 2011 14:37:15 GMT Anthropologists at the University of Toronto and the University of Cambridge have discovered the oldest cemetery in the Middle East at a site in northern Jordan. The cemetery includes graves containing human remains buried alongside those of a red fox, suggesting that the animal was possibly kept as a pet by humans long before dogs ever were........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/dinosaurs-survived-mass-extinction-by-700000-years.html http://www.networlddirectory.com/blogs/permalinks/1-2011/dinosaurs-survived-mass-extinction-by-700000-years.html Mon, 18 Jul 2011 14:37:15 GMT University of Alberta scientists determined that a fossilized dinosaur bone found in New Mexico confounds the long established paradigm that the age of dinosaurs ended between 65.5 and 66 million years ago. The U of A team, led by Larry Heaman from the Department of Earth and Atmospheric Sciences, determined the femur bone of a hadrosaur as being only 64.8 million years old. That means this particular plant eater was alive about 700,000 years after the mass extinction event a number of paleontologists believe wiped all non-avian dinosaurs off the face of earth, forever........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/humans-may-have-left-africa-for-eurasia.html http://www.networlddirectory.com/blogs/permalinks/1-2011/humans-may-have-left-africa-for-eurasia.html Mon, 18 Jul 2011 14:37:15 GMT Researchers have discovered new evidence suggesting that modern humans first left Africa to explore Eurasia much earlier than previously thought. An international team of researchers has uncovered a tool kit that indicates that modern humans, who looked and perhaps behaved much like us, must have lived in eastern Arabia about 100,000 to 125,000 years ago. The collection of small hand axes, scrapers and other tools was found in Jebel Faya, United Arab Emirates. A report about the discovery appears in the journal Science........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/evolution-by-mistake.html http://www.networlddirectory.com/blogs/permalinks/1-2011/evolution-by-mistake.html Mon, 18 Jul 2011 14:37:15 GMT Charles Darwin based his groundbreaking theory of natural selection on the realization that genetic variation among organisms is the key to evolution. Some individuals are better adapted to a given environment than others, making them more likely to survive and pass on their genes to future generations. But exactly how nature creates variation in the first place still poses somewhat of a puzzle to evolutionary biologists........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/new-light-on-dawn-of-the-dinosaurs.html http://www.networlddirectory.com/blogs/permalinks/1-2011/new-light-on-dawn-of-the-dinosaurs.html Mon, 18 Jul 2011 14:37:15 GMT Careful dating of new dinosaur fossils and volcanic ash around them by scientists from UC Davis and UC Berkeley casts doubt on the idea that dinosaurs appeared and opportunistically replaced other animals. Instead -- at least in one South American valley -- they seem to have existed side by side and gone through similar periods of extinction........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/learing-evolution-using-cloud-computing.html http://www.networlddirectory.com/blogs/permalinks/1-2011/learing-evolution-using-cloud-computing.html Mon, 18 Jul 2011 14:37:15 GMT \ An innovative, educational computing platform developed by University at Buffalo faculty members and hosted by the cloud (remote, high-capacity, scalable servers) is helping UB students understand parts of evolutionary biology on an entirely new level. Soon, high-school and middle-school students will benefit from the same tool as well........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/new-species-of-flying-reptile-identified.html http://www.networlddirectory.com/blogs/permalinks/1-2011/new-species-of-flying-reptile-identified.html Mon, 18 Jul 2011 14:37:15 GMT Persistence paid off for a University of Alberta paleontology researcher, who after months of pondering the origins of a fossilized jaw bone, finally identified it as a new species of pterosaur, a flying reptile that lived 70 million years ago. Victoria Arbour says she was stumped when the small piece of jaw bone was first pulled out of of a fossil storage cabinet in the U of A's paleontology department........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/humans-first-wore-clothes-170000-years-ago.html http://www.networlddirectory.com/blogs/permalinks/1-2011/humans-first-wore-clothes-170000-years-ago.html Mon, 18 Jul 2011 14:37:15 GMT A new University of Florida study following the evolution of lice shows modern humans started wearing clothes about 170,000 years ago, a technology which enabled them to successfully migrate out of Africa. Principal investigator David Reed, associate curator of mammals at the Florida Museum of Natural History on the UF campus, studies lice in modern humans to better understand human evolution and migration patterns. His latest five-year study used DNA sequencing to calculate when clothing lice first began to diverge genetically from human head lice........ ]]> http://www.networlddirectory.com/blogs/permalinks/1-2011/ocean-dead-zones-challenged-early-life.html http://www.networlddirectory.com/blogs/permalinks/1-2011/ocean-dead-zones-challenged-early-life.html Mon, 18 Jul 2011 14:37:15 GMT The oceans became oxygen-rich as they are today about 600 million years ago, during Earth's Late Ediacaran Period. Before that, most researchers believed until recently, the ancient oceans were relatively oxygen-poor for the preceding four billion years. Now biogeochemists at the University of California-Riverside (UCR) have found evidence that the oceans went back to being "anoxic," or oxygen-poor, around 499 million years ago, soon after the first appearance of animals on the planet........ ]]> http://www.networlddirectory.com/blogs/permalinks/12-2010/secrets-of-an-ancient-tel-aviv-fortress.html http://www.networlddirectory.com/blogs/permalinks/12-2010/secrets-of-an-ancient-tel-aviv-fortress.html Mon, 18 Jul 2011 14:37:15 GMT Tel Qudadi, an ancient fortress located in the heart of Tel Aviv at the mouth of the Yarkon River, was first excavated more than 70 years ago - but the final results of neither the excavations nor the finds were ever published. Now, research on Tel Qudadi by archaeologists at Tel Aviv University has unpeeled a new layer of history, indicating that there is much more to learn from the site, including evidence that links ancient Israel to the Greek island of Lesbos........ ]]>