() No new mountains formed during Earth's middle age, halting life's evolution for an eonĭuring the Proterozoic, Earth grew no taller - the tectonic processes that form mountains stalled, leaving continents devoid of high mountains for nearly 1 billion years, according to a new study. University of Queensland-led animal studies have found that paucigranulocytic asthma (PGA) - a non-allergic form of the condition - allows the flu virus to flourish in greater numbers in sufferers. () Asthma may heighten flu risk and cause dangerous mutationsĪ subtype of asthma in adults may cause higher susceptibility to influenza and could result in dangerous flu mutations. In the experiment, an evolved clone outcompetes a recent ancestor but loses in direct competition with a distant ancestor. Lang and his team identify a nontransitive evolutionary sequence through a 1,000-generation yeast evolution experiment.

() Evolution's game of rock-paper-scissorsĪ group of scientists at Lehigh University led by Gregory Lang, associate professor in the Department of Biological Sciences, has recently provided empirical evidence that evolution can be nontransitive.

Weighing in at roughly 21 solar masses, the black hole in the X-ray binary system Cygnus X-1 is so massive that it challenges current stellar evolution models, a new study reveals. () The mass of Cygnus X-1's black hole challenges stellar evolution models The flies exposed to invasive species evolved in the fall to be larger, lay fewer eggs and develop faster than flies that hadn't been exposed.

This affected how the flies adapted to cold weather. Over a few months, the naturalized species adapted to the invasive species' presence. Rapid evolution may help species adapt to climate change and competitionĪ study shows that a fruit fly species can adapt rapidly to an invader and this evolutionary change can affect how they deal with a stressful climate.

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