The biological makeup of humans in East Asia is shaping up to be a very complex story, with greater diversity and more distant contacts than previously known, according to a new study analyzing the genome of a man that died in the Tianyuan Cave near Beijing, China 40,000 years ago. His bones had enough DNA molecules left that a team led by Professor FU Qiaomei could use advanced ancient DNA sequencing techniques to retrieve DNA from him that spans the human genome.
Gold has long been valued for its luxurious glitter and hue, and threads of the gleaming metal have graced clothing and tapestries for centuries. Determining how artisans accomplished these adornments in the distant past can help scientists restore, preserve and date artifacts, but solutions to these puzzles have been elusive. Now scientists, reporting in ACS' journal Analytical Chemistry, have revealed that medieval artisans used a gilding technology that has endured for centuries.
Amazonian farmers discovered how to manipulate wild rice so the plants could provide more food 4,000 years ago, long before Europeans colonized America, archaeologists have discovered.
Ancient DNA extracted from fossil bones and museum specimens has shed new light on the mysterious loss of the Tasmanian tiger (thylacine) from Australia's mainland.
A Dartmouth-led study has demonstrated how the latest aerial thermal imagery is transforming archaeology due to advancements in technology. Today's thermal cameras, commercial drones and photogrammetric software has introduced a new realm of possibilities for collecting site data-- field survey data across a much larger area can now be obtained in much less time. The findings in Advances in Archaeological Practice serve as a manual on how to use aerial thermography.
The paper outlines how the urban design of the city of Teotihuacan differed from past and subsequent cities, only to be rediscovered and partially modelled on many centuries later by the Aztecs.
The nearly nine hundred giant stone statues discovered by the first Europeans to land on Easter Island seemed at odds with the small population found living there. It is believed a once thriving community witnessed sweeping ecological change and suffered internal conflict, resulting in a population crash. A new detailed study of the farming potential of the Island suggests it could have sustained 17,500 people at its peak.
Researchers studying 18th century British nautical charts tracked the loss of coral reef habitat in the Florida Keys over the last two centuries. According to their analysis, entire sections of reef near the shore that were present prior to European settlement are now largely gone.
Analysis of a skeleton found in the Chan Hol cave near Tulum, Mexico, suggests human settlement in the Americas occurred in the late Pleistocene era, according to a study published Aug. 30, 2017, in the open-access journal PLOS ONE by Wolfgang Stinnesbeck from Universität Heidelberg, Germany, and colleagues.
UNSW Sydney scientists have discovered the purpose of a famous 3,700-year old Babylonian clay tablet, revealing it is the world's oldest and most accurate trigonometric table, possibly used by ancient mathematical scribes to calculate how to construct palaces and temples and build canals. The new research shows the Babylonians beat the Greeks to the invention of trigonometry -- the study of triangles -- by more than 1,000 years.