News articles tagged with 'evolution'
Slowing evolution to stop drug resistance
— 17 Nov 2009 16:29 | HealthInfectious organisms that become resistant to antibiotics are a serious threat to human society. They are also a natural part of evolution. In a new project, researchers at the University... — full story
Bacterial 'ropes' tie down shifting Southwest
— 17 Nov 2009 12:09 | BiologyResearchers from Arizona State University have discovered that several species of microbes (cyanobacteria), at least one found prominently in the deserts of the Southwest, have evolved... — full story
Why can't chimps speak?
— 12 Nov 2009 09:44 | BiologyIf humans are genetically related to chimps, why did our brains develop the innate ability for language and speech while theirs did not?... — full story
Ancient penguin DNA raises doubts about accuracy of genetic dating techniques
— 11 Nov 2009 14:28 | BiologyPenguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those... — full story
Bacteria expect the unexpected
— 5 Nov 2009 12:47 | BiologyOrganisms ensure the survival of their species by genetically adapting to the environment. If environmental conditions change too rapidly, the extinction of a species may be the consequence.... — full story
Study sheds light on evolution of human complexity
— 4 Nov 2009 13:36 | HealthA painstaking analysis of thousands of genes and the proteins they encode shows that human beings are biologically complex, at least in part, because of the way humans evolved to cope... — full story
New insights into Australia's unique platypus
— 3 Nov 2009 11:47 | BiologyNew insights into the biology of the platypus and echidna have been published, providing a collection of unique research data about the world's only monotremes... — full story
There's a speed limit to the pace of evolution, Penn biologists say
— 3 Nov 2009 10:32 | BiologyResearchers at the University of Pennsylvania have developed a theoretical model that informs the understanding of evolution and determines how quickly an organism will evolve using... — full story
A new wrinkle in ancient ocean chemistry
— 30 Oct 2009 10:06 | EnvironmentScientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the 'Great Oxidation Event' (GOE),... — full story
A solution to Darwin's 'mystery of the mysteries' emerges from the dark matter of the genome
— 27 Oct 2009 18:03 | HealthBiological species are often defined on the basis of reproductive isolation. Ever since Darwin pointed out his difficulty in explaining why crosses between two species often yield sterile... — full story