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New Dinosaur Fossil Challenges Bird Flight Origins Theories
January 24, 2013 — The discovery of a new bird-like dinosaur from the Jurassic period challenges widely accepted theories on the origin of flight. A new paper describes a new feathered dinosaur about 30 centimeters in ... > full story -
Retrovirus in the Human Genome Is Active in Pluripotent Stem Cells
January 23, 2013 — A retrovirus called HERV-H, which inserted itself into the human genome millions of years ago, may play an important role in pluripotent stem cells. The discovery, which may help explain how these ... > full story -
A Relative from the Tianyuan Cave: Humans Living 40,000 Years Ago Likely Related to Many Present-Day Asians and Native Americans
January 21, 2013 — Ancient DNA has revealed that humans living some 40,000 years ago in the area near Beijing were likely related to many present-day Asians and Native ... > full story -
Great Oxidation Event: More Oxygen Through Multicellularity
January 17, 2013 — The appearance of free oxygen in the Earth’s atmosphere led to the Great Oxidation Event. This was triggered by cyanobacteria producing the oxygen which developed into multicellular forms as ... > full story -
What Did Our Ancestors Look Like? Hair and Eye Color Can Be Determined for Ancient Human Remains
January 13, 2013 — A new method of establishing hair and eye color from modern forensic samples can also be used to identify details from ancient human remains, finds a new study. The HIrisPlex DNA analysis system was ... > full story -
A History Lesson from Genes: Using DNA to Tell Us How Populations Change
January 9, 2013 — Researchers have developed a software model that can infer population history from modern ... > full story -
Fluctuating Environment May Have Driven Human Evolution
December 26, 2012 — A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers ... > full story -
Paleo-Ocean Chemistry: New Data Challenge Old Views About Evolution of Early Life
December 23, 2012 — A research team has tested a hypothesis in paleo-ocean chemistry, and proved it false. Many researchers attribute the delayed diversification and proliferation of eukaryotes to very low levels of ... > full story -
Origin of Life: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics
December 20, 2012 — A coherent pathway -- which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells -- has been traced for the ... > full story -
Prehistoric Ghosts Revealing New Details: Synchrotron Helps Identify Previously Unseen Anatomy Preserved in Fossils
December 18, 2012 — Scientists have used synchrotron-based imaging techniques to identify previously unseen anatomy preserved in fossils. Their work on a 50-million-year-old lizard skin identified the presence of ... > full story
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