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Does Cooperation Require Both Reciprocity and Alike Neighbors?
June 8, 2012 — Scientists have developed a new theoretical model on the evolution of cooperation. Evolution by definition is cold and merciless: it selects for success and weeds out failure. It seems only natural ... > full story -
How Infectious Disease May Have Shaped Human Origins
June 4, 2012 — Scientists suggest that inactivation of two specific genes related to the immune system may have conferred selected ancestors of modern humans with improved protection from some pathogenic bacterial ... > full story -
Chemical Substitution: On Early Earth, Iron May Have Performed Magnesium's RNA Folding Job
May 31, 2012 — Researchers have used experiments and numerical calculations to show that iron, in the absence of oxygen, can substitute for magnesium in RNA binding, folding and catalysis. The findings suggest that ... > full story -
Evolution of Birds Is Result of a Drastic Change in How Dinosaurs Developed
May 30, 2012 — Researchers have found evidence that the evolution of birds is the result of a drastic change in how dinosaurs developed. Scientists have long understood that modern birds descended from dinosaurs. ... > full story -
Tiny Genetic Variations Led to Big Changes in the Evolving Human Brain
May 30, 2012 — Changes to just three genetic letters among billions led to evolution and development of the mammalian motor sensory network, and laid the groundwork for the defining characteristics of the human ... > full story -
16th-Century Korean Mummy Provides Clue to Hepatitis B Virus Genetic Code
May 29, 2012 — The discovery of a mummified Korean child with relatively preserved organs enabled an Israeli-South Korean scientific team to conduct a genetic analysis on a liver biopsy which revealed a unique ... > full story -
New Genetic Method Developed to Pinpoint Individuals' Geographic Origin
May 24, 2012 — Scientists have developed an innovative approach for the modeling of genetic variation in two- or three-dimensional space called spatial ancestry analysis (SPA). With SPA, researchers model the ... > full story -
Oldest Art Even Older: New Dates from Geißenklösterle Cave Show Early Arrival of Modern Humans, Art and Music
May 24, 2012 — New dates from Geißenklösterle Cave in Southwest Germany document the early arrival of modern humans and early appearance of art and music. The new dates use improved methods to remove ... > full storyMore: -
Ancient Plant-Fungal Partnerships Reveal How the World Became Green
May 15, 2012 — Prehistoric plants grown in state-of-the-art growth chambers recreating environmental conditions from more than 400 million years ago have shown scientists how soil dwelling fungi played a crucial ... > full story -
Evolution of Sex Differences: Battles of Sexes Shown to Spur Adaptive Sex Differences
May 3, 2012 — Male water striders benefit by mating frequently, females by mating infrequently: both have developed traits to give them the upper hand. The researchers modified a gene involved in the development ... > full story
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