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sciencealert.com

New DNA Technology Is Shaking Up The Branches of The Evolutionary Tree

If you look different to your close relatives, you may have felt separate from your family. As a child, during particularly stormy fall outs you might have even hoped it was a sign that you were adopted. As our new research shows, appearances can be deceptive when it comes to...
SCIENCE
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Phys.org

Theories on socio-political evolution put to the test

During the past 10,000 years—the Holocene—human societies became larger and ever more complex. An international team of scientists led by Peter Turchin from the Complexity Science Hub Vienna (CSH) set out to test various theories on what drove this process. According to its analyses of data from Seshat: Global History Databank, the best explanation for the evolution of socio-cultural complexity is a combination of increasing agricultural productivity and the invention, or adoption, of military technologies (most notably, the invention of iron weapons and cavalry in the first millennium BCE). The study just appeared in the journal Science Advances.
SCIENCE
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Clayton News Daily

Meet the Tyrannosaur family at Fernbank Museum's newest exhibit

ATLANTA — With another edition of the “Jurassic Park” series of feature films set to pack movie houses this summer, Fernbank Museum is doing a bit of paleontology digging of its own with a new exhibit, “Tyrannosaurs: Meet the Family,” which is currently showing and runs through Sept. 5.
ATLANTA, GA
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KSN.com

Children’s Mercy Wichita – COVID-19 Vaccine

Dr. Angela Myers, Division Director of Infectious Diseases with Children’s Mercy joined us today to share information on vaccines for children under the age of four years old. Dr. Myers encouraged parents to consult their primary care physicians and understand the recommendations they provide for your child and to feel confident in taking steps to keep their children healthy.
WICHITA, KS
TVOvermind

How the Show Roswell, New Mexico Has Evolved Since Season 1

When news broke a few years ago that the late 90s/early 2000s show Roswell was getting a modern reboot, lots of people were excited. Although the show was fairly short-lived (three seasons) it still managed to build a significant fan base. When the reboot, Roswell, New Mexico premiered in 2019 it didn’t take long for the show to become a huge hit. Now in its fourth season, the series is drawing to a close and it has already been announced that this season will be its last. That being said, quite a few things have changed since the show’s first season. While some of these changes have been pretty noticeable, others have been fairly easy to miss. Let’s talk about how Roswell, New Mexico has evolved since season 1.
ROSWELL, NM
Nature.com

Emergent properties as by-products of prebiotic evolution of aminoacylation ribozymes

Systems of catalytic RNAs presumably gave rise to important evolutionary innovations, such as the genetic code. Such systems may exhibit particular tolerance to errors (error minimization) as well as coding specificity. While often assumed to result from natural selection, error minimization may instead be an emergent by-product. In an RNA world, a system of self-aminoacylating ribozymes could enforce the mapping of amino acids to anticodons. We measured the activity of thousands of ribozyme mutants on alternative substrates (activated analogs for tryptophan, phenylalanine, leucine, isoleucine, valine, and methionine). Related ribozymes exhibited shared preferences for substrates, indicating that adoption of additional amino acids by existing ribozymes would itself lead to error minimization. Furthermore, ribozyme activity was positively correlated with specificity, indicating that selection for increased activity would also lead to increased specificity. These results demonstrate that by-products of ribozyme evolution could lead to adaptive value in specificity and error tolerance.
SCIENCE
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