emergence
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Science
Making Darwin’s finches sing can help establish connections between environmental changes and the emergence of new species
The beak of Darwin’s intermediate finch can evolve to crush hard seed shells. Credit: Andrew Hendry They say “hindsight is 20/20,” but ecological speciation theory (the theory that new species emerge in response to ecological change) seems to hold true in hindsight. Until now, it has been difficult to prove this experimentally. In a study published in the journal Science,…
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Physics
The research team is investigating the emergence of fluctuating hydrodynamics in chaotic quantum systems.
Fluorescence images of a quantum many-body system of cesium atoms in an optical lattice, with an initially ordered configuration (left) and a random configuration that evolves over time. By studying the growth of fluctuations in this system, we find indications that quantum many-body systems can be macroscopically described by a simple classical theory called fluctuational hydrodynamics (FHD). Courtesy of Julian…
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