Evolutionary Biology News
September 4, 2015

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More Evolutionary Biology News
September 4, 2015

Aug. 31, 2015 — Among birds, the line between species is often blurry. Some closely related species interbreed where their ranges overlap, producing hybrid offspring. In the coastal marshes of New England, this has ... read more

Aug. 31, 2015 — How did the ankylosaur get its tail club? According to research that traces the evolution of the ankylosaur's distinctive tail, the handle arrived first on the scene, and the knot at the end of ... read more

Aug. 28, 2015 — Scientists have identified chemosensory proteins (CSPs) that play important roles in communications between worker ants. CSPs may represent a starting point for elucidation of the molecular ... read more

Aug. 27, 2015 — Although flightless in air, penguins have a number of adaptations which allow them glide effortlessly through the water. And some of these adaptations are in an unlikely part of their anatomy -- ... read more

Aug. 27, 2015 — A new study has found that the genetic diversity of wild plant species could be altered rapidly by anthropogenic climate ... read more

Aug. 26, 2015 — A new study is providing a clearer picture of the evolutionary history and genetic organization of cannabis, a step that could have agricultural, medical and legal implications for this valuable ... read more

Aug. 26, 2015 — Paleontologists have discovered a new species of lizard, named Gueragama sulamericana, in the municipality of Cruzeiro do Oeste in Southern Brazil in the rock outcrops of a Late Cretaceous desert, ... read more

Batting Practice in the Genome

Aug. 25, 2015 — In the biochemical game of genetics, it was thought that the proteins controlling gene regulation in animals were either spectators or players. But scientists have now found that spectator proteins ... read more

Adaptive Mutation Mechanism May Explain Some Forms of Antibiotic Resistance

Aug. 25, 2015 — Evolutionary theory says mutations are blind and occur randomly. But in the phenomenon of adaptive mutation, cells can peek under the blindfold, increasing their mutation rate in response to stress. ... read more

Aug. 25, 2015 — Barley, a widely grown cereal grain commonly used to make beer and other alcoholic beverages, possesses a large and highly repetitive genome that is difficult to fully sequence. Now scientists have ... read more

Aug. 25, 2015 — Visual mimicry lets the helmeted woodpecker (Dryocopus galeatus) live on the threatened Atlantic forest turf of two bigger birds -- the lineated Dryocopus lineatus and robust (Campephilus robustus) ... read more

Aug. 25, 2015 — Several Palaeozoic mass extinction events during the Ordovician and Silurian periods (ca. 485 to 420 to million years ago) shaped the evolution of life on our planet. Although some of these ... read more

Aug. 20, 2015 — The fact that the greatest diversity of large mammals is found in Africa reflects past human activities -- and not climatic or other environmental constraints. This is determined in a new study, ... read more

Aug. 20, 2015 — A single molecular event in our cells could hold the key to how we evolved to become the smartest animal on the planet, scientists report. They have uncovered how a small change in a protein called ... read more

Aug. 20, 2015 — Disease-causing viruses engage their hosts in ongoing arms races: positive selection for antiviral genes increases host fitness and survival, and viruses in turn select for mutations that counteract ... read more

Aug. 20, 2015 — Bacteria do not cease to amaze us with their survival strategies. A research has now discovered how bacteria enter a sleep mode using a so-called FIC toxin. In a new article, the scientists describe ... read more

Aug. 19, 2015 — A team of international researchers has discovered a fossil monkey specimen representing the earliest baboon ever found. Dating back more than two million years ago, the partial skull was found in ... read more

Genome-Wide Annotation of Primary miRNAs Reveals Novel Mechanisms

Aug. 19, 2015 — MicroRNAs are short noncoding RNAs that play critical roles in regulating gene expression in normal physiology and disease. Despite having tightly controlled expression levels, little is known about ... read more

Aug. 19, 2015 — Animal sex signals, communications between partners indicating health, the capacity to produce healthy offspring and more, were thought to be beneficial and passed down from generation to generation. ... read more

Aug. 19, 2015 — Plants and animals, including humans, are not autonomous individuals but are holobionts: biomolecular networks that consist of visible hosts plus millions of invisible microbes, recent ... read more

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