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Genetic Struggles Within Cells May Create New Species
...other,” said Elina Immonen, an evolutionary geneticist and researcher at Uppsala University. “Males and females also might have different evolutionary interests.” The mismatch of evolutionary forces on mitochondrial and nuclear...
Why Did The Universe Begin?
...are pretty rare. The explanation is that in between the ground zero level of physics and the advanced sort of life level, there are many layers of evolution. Many improbabilities,...
New Giant Viruses Further Blur the Definition of Life
...in translation, the synthesis of proteins — a finding that came as a shock. “It appears that giant viruses are as complex as living organisms,” said Chantal Abergel, an evolutionary...
Viruses Have a Secret, Altruistic Social Life
...at a severe disadvantage under natural selection. William D. Hamilton, one of the 20th century’s most prominent evolutionary theorists, developed a mathematical theory to explain the evolution of altruism through...
How Neutral Theory Altered Ideas About Biodiversity
...College London. Kimura’s neutral theory of molecular evolution sparked debate because it seemed to water down the influence of selection. But the genomics revolution of the late 20th century and...
In Test Tubes, RNA Molecules Evolve Into a Tiny Ecosystem
...world. These studies were the world’s first experimental demonstration of Darwinian evolution at the molecular level — “evolution by natural selection, survival of the fittest,” said Eugene Koonin, a National...
The Mystery of the Missing Multicellular Prokaryotes
...flaw in the way many people were thinking about evolution. It is easy to assume that evolution is synonymous with natural selection, the force that weeds out less advantageous forms...
What Can Birdsong Teach Us About Human Language?
...Yeah, so we call it parallel evolution or independent evolution. LEVIN: That just strikes me as huge. JARVIS: Yes, yes it does. LEVIN: I think that’s good for astrobiology, that...
A New Idea for How to Assemble Life
...not their components.” To understand how assembly processes operate within these notional universes, consider the problem of Darwinian evolution. Conventionally, evolution is something that “just happened” once replicating molecules arose...