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Ancient Teeth Bacteria Record Disease Evolution
February 17, 2013 — DNA preserved in calcified bacteria on the teeth of ancient human skeletons has shed light on the health consequences of the evolving diet and behavior from the Stone Age to the modern ... > full story -
Humans and Chimps Share Genetic Strategy in Battle Against Pathogens
February 14, 2013 — A search for long-lived balancing selection has found at least six regions of the genome where humans and chimpanzees share a combination of genetic variants. These human genetic variation dates back ... > full story -
Studies Reveal Genetic Variation Driving Human Evolution
February 14, 2013 — A pair of studies sheds new light on genetic variation that may have played a key role in human evolution. The study researchers used an animal model to study a gene variant that could have helped ... > full story -
Most Comprehensive Tree of Life Shows Placental Mammal Diversity Exploded After Age of Dinosaurs
February 7, 2013 — Scientists have generated the most comprehensive tree of life to date on placental mammals, which are those bearing live young, including bats, rodents, whales and ... > full storyMore: -
New Look at Human Fossil Suggests Eastern Europe Was an Important Pathway in Evolution
February 7, 2013 — A fossilized bone fragment found buried deep in the soil of a Serbian cave is causing scientists to reconsider what happened during a critical period in human development, when the strands of modern ... > full storyMore: -
Scientists Identify Genetic Mechanism That Contributed to Irish Famine
February 6, 2013 — Plant pathologists studied the pathogen that triggered the Irish Famine of the 19th century by infecting potato plants, and deciphered how it succeeded in crippling the potato plant's immune ... > full story -
Aztec Conquest Altered Genetics Among Early Mexico Inhabitants, New DNA Study Shows
January 31, 2013 — For centuries, the fate of the original Otomi inhabitants of Xaltocan, the capital of a pre-Aztec Mexican city-state, has remained unknown. Researchers have long wondered whether they assimilated ... > full story -
First Artificial Enzyme Created by Evolution in a Test Tube
January 30, 2013 — A wobbly new biochemical structure in one scientist's lab may resemble what enzymes looked like billions of years ago, when life on Earth began to evolve -- long before they became ingredients for ... > full story -
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
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