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Can evolution select for evolvability? | Machines Like Us

Can evolution select for evolvability? | Machines Like Us | The virtual life | Scoop.it

Evolution does not operate with a goal in mind; it does not have foresight. But organisms that have a greater capacity to evolve may fare better in rapidly changing environments. This raises the question: does evolution favor characteristics that increase a species' ability to evolve?

For several years, biologists have attempted to provide evidence that natural selection has acted on evolvability. Now a new paper by University of Pennsylvania researchers offers, for the first time, clear evidence that the answer is yes.

The senior author on the study, published in the journal PLOS Pathogens, is Dustin Brisson, an assistant professor in the School of Arts and Sciences' Department of Biology. His coauthors include Penn's Christopher J. Graves, Vera I. D. Ros and Paul D. Sniegowski, and the University of Kentucky's Brian Stevenson.

"It's not controversial that populations evolve and that some traits are more apt to evolve than others," Brisson said. "What we were asking is whether the ability of an organism to evolve is a trait that natural selection can pick."

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Via Wildcat2030
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Teresa M. Nash's comment, November 28, 2013 4:41 AM
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W bosons remain left-handed

W bosons remain left-handed | The virtual life | Scoop.it
A new result from the LHCb collaboration weakens previous hints at the existence of a new type of W boson.
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There's a Dark Matter 'Bridge' Between the Milky Way and the Virgo Cluster

There's a Dark Matter 'Bridge' Between the Milky Way and the Virgo Cluster | The virtual life | Scoop.it
Astrophysicists offer an explanation for a lingering mystery: the disc-like distributions of satellite dwarf galaxies.
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After 85-year search, massless particle with promise for next-generation electronics found

After 85-year search, massless particle with promise for next-generation electronics found | The virtual life | Scoop.it
An international team led by Princeton University scientists has discovered Weyl fermions, an elusive massless particle theorized 85 years ago. The particle could give rise to faster and more efficient electronics because of its unusual ability to behave as matter and antimatter inside a crystal, according to new research.
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Researchers build first working memcomputer prototype

Researchers build first working memcomputer prototype | The virtual life | Scoop.it
(Tech Xplore)—A combined team of researchers from the University of California and Politecnico di Torino in Italy has built, for the first time, a working memory-crunching computer (memcomputer) prototype. It is capable, the team reports in their paper published in the journal Science Advances, of ...
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Oops, the universe may have ten to 100 times fewer galaxies than we thought | KurzweilAI

Oops, the universe may have ten to 100 times fewer galaxies than we thought | KurzweilAI | The virtual life | Scoop.it
There may be far fewer galaxies further out in the universe then might be expected, according to a new study led by MSU (credit:
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‘Brain-to-Text’ system converts speech brainwave patterns to text | KurzweilAI

‘Brain-to-Text’ system converts speech brainwave patterns to text | KurzweilAI | The virtual life | Scoop.it
Brain activity recorded by electrocorticography electrodes (blue circles). Spoken words are then decoded from neural activity patterns in the blue/yellow
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Einstein saves the quantum cat

Einstein saves the quantum cat | The virtual life | Scoop.it
Einstein's theory of time and space will celebrate its 100th anniversary this year. Even today it captures the imagination of scientists. In an international collaboration, researchers from the universities of Vienna, Harvard and Queensland have now discovered that this world-famous theory can explain ...
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Life in life - YouTube

A video of Conway's Game of Life, emulated in Conway's Game of Life. The Life pattern is the OTCA Metapixel: http://www.conwaylife.com/wiki/OTCA_metapixel - ...
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Machine Vision Algorithm Chooses the Most Creative Paintings in History | MIT Technology Review

Machine Vision Algorithm Chooses the Most Creative Paintings in History | MIT Technology Review | The virtual life | Scoop.it
Picking the most creative paintings is a network problem akin to finding super spreaders of disease. That’s allowed a machine to pick out the most creative paintings in history.
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A Private View of Quantum Reality | Quanta Magazine

A Private View of Quantum Reality |  Quanta Magazine | The virtual life | Scoop.it
Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics.
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A New Theory to Explain the Higgs Mass | Quanta Magazine

A New Theory to Explain the Higgs Mass |  Quanta Magazine | The virtual life | Scoop.it
Three physicists have proposed a new solution to one of the deepest mysteries in particle physics: why the Higgs boson has such a tiny mass.
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Origins of life: New model may explain emergence of self-replication on early Earth

Origins of life: New model may explain emergence of self-replication on early Earth | The virtual life | Scoop.it
When life on Earth began nearly 4 billion years ago, long before humans, dinosaurs or even the earliest single-celled forms of life roamed, it may have started as a hiccup rather than a roar: small, simple molecular building blocks known as "monomers" coming together into longer "polymer" chains and falling apart in the warm pools of primordial ooze over and over again.
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NASA’s Kepler Mission Discovers Bigger, Older Cousin to Earth

NASA’s Kepler Mission Discovers Bigger, Older Cousin to Earth | The virtual life | Scoop.it
NASA's Kepler mission has confirmed the first near-Earth-size planet in the “habitable zone” around a sun-like star. This discovery and the introduction of 11 other new small habitable zone candidate planets mark another milestone in the journey to finding another “Earth.”
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The New Laws of Explosive Networks | Quanta Magazine

The New Laws of Explosive Networks |  Quanta Magazine | The virtual life | Scoop.it
Researchers are uncovering the hidden laws that reveal how the Internet grows, how viruses spread, and how financial bubbles burst.
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Discovery of a new class of particles at the LHC | CERN

Discovery of a new class of particles at the LHC | CERN | The virtual life | Scoop.it
The LHCb experiment at CERN’s Large Hadron Collider has reported the discovery of a class of particles known as pentaquarks. The collaboration has submitted today a paper reporting these findings to the journal Physical Review Letters.
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Is the universe ringing like a crystal glass?

Is the universe ringing like a crystal glass? | The virtual life | Scoop.it
Many know the phrase 'the big bang theory.' There's even a top television comedy series with that as its title. According to scientists, the universe began with the 'big bang' and expanded to the size it is today. Yet, the gravity of all of this matter, stars, gas, galaxies, and mysterious dark matter, ...
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Swedish scientists create an artificial neuron that mimicks an organic one | KurzweilAI

Swedish scientists create an artificial neuron that mimicks an organic one | KurzweilAI | The virtual life | Scoop.it
Chemical-to-electrical-to-chemical signal transmission. A conventional neuron (upper panel) senses chemical signals (orange circles), which trigger an
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Computational Fact Checking from Knowledge Networks

Computational Fact Checking from Knowledge Networks | The virtual life | Scoop.it
Traditional fact checking by expert journalists cannot keep up with the enormous volume of information that is now generated online. Computational fact checking may significantly enhance our ability to evaluate the veracity of dubious information. Here we show that the complexities of human fact checking can be approximated quite well by finding the shortest path between concept nodes under properly defined semantic proximity metrics on knowledge graphs. Framed as a network problem this approac
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What's on the surface of a black hole? Not 'firewall'—and nature of universe depends on it, physicist explains

What's on the surface of a black hole? Not 'firewall'—and nature of universe depends on it, physicist explains | The virtual life | Scoop.it
Are black holes the ruthless killers we've made them out to be?
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Self-awareness not unique to mankind

Self-awareness not unique to mankind | The virtual life | Scoop.it
Humans are unlikely to be the only animal capable of self-awareness, a new study has shown.
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Scientists Show Future Events Decide what Happens in the Past.

Scientists Show Future Events Decide what Happens in the Past. | The virtual life | Scoop.it
We all agree, past events can affect the present. And present events affect the future. But few would credibly argue that future events can affect the past.
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Researchers Find Missing Link Between the Brain and Immune System

Researchers Find Missing Link Between the Brain and Immune System | The virtual life | Scoop.it
Researchers discover the brain and immune system are directly linked through vessels previously thought not to exist.
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Scientists recover ‘lost’ memories using brain stimulation by blue light | KurzweilAI

Scientists recover ‘lost’ memories using brain stimulation by blue light | KurzweilAI | The virtual life | Scoop.it
(credit: Christine Daniloff/MIT) MIT researchers have found they were able to reactivate memories in mice that could not otherwise be retrieved, using
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