Evolution
- Less Random Fitness: A Refined Biological Evolution Model
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Models for the evolution of life are now being developed to try and clarify the long term dynamics of an evolving system of species. Specifically, a recent model proposed by Petri Kärenlampi from the University of Eastern Finland in Joensuu accounts for s ...
Article - News Staff - Jul 21 2014 - 3:00pm
- Leftover Primordial Soup: The 4 Billion Year Old Chemistry Still In Our Cells Today
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Parts of the primordial soup in which life arose have been maintained in our cells today, according to a new paper. The articles in the Journal of Biological Chemistry discusses how cells in plants, yeast and very likely also in animals still perform anc ...
Article - News Staff - Jul 25 2014 - 9:48am
- Does RNA Have Memory? Genes May Remember Starvation
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During the winter of 1944, the Nazis blocked food supplies to the western Netherlands, creating a period of widespread famine and devastation. The impact of starvation on expectant mothers were also an epigenetic experiment — a way to monitor changes resu ...
Article - News Staff - Aug 1 2014 - 6:00am
- Lucinids: 400 Million Years Of Symbiotic Survival
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One of the most diverse families in the ocean today, marine bivalve mollusks- called Lucinidae or lucinids- originated more than 400 million years ago in the Silurian period, with adaptations and life habits like those of its modern members. About 500 lu ...
Article - News Staff - Aug 1 2014 - 8:46am
- Tooth Evolution Reproduced By Manipulating Embryonic Development Of Mice
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Researchers have been able to experimentally reproduce morphological changes in mice which have taken millions of years to occur. Through small and gradual modifications in the embryonic development of mice teeth, induced in the laboratory, they obtained t ...
Article - News Staff - Aug 1 2014 - 5:43pm
- Influenced Evolution- 6 Generations To Change Butterfly Wing Color
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Researchers working on biomimicry have produced the first structural color change in an animal by influencing evolution: They've changed the color of the butterfly Bicyclus anynana from brown to violet- and needed only six generations of selection to ...
Article - News Staff - Aug 8 2014 - 7:00am
- Rangeomorphs: How Some Of The Earliest Animals Lived And Died
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Rangeomorphs were unlike any modern organism, which has made it difficult to determine how they fed, grew or reproduced, and therefore difficult to link them to any particular modern group. They looked like plants but evidence points to the fact that rang ...
Article - News Staff - Aug 11 2014 - 4:42pm
- The Math Of Biology And LUCA's Leaky Membrane
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Descent with modification means that all life on Earth probably came from one common ancestor – a single-celled organism – We just have to speculate and create models for what it may have looked like, how it lived and how it evolved into today's mode ...
Article - News Staff - Aug 12 2014 - 3:00pm
- Pygmy Phenotype Adapted To Rainforest, But They're Not All The Same
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The small body size associated with the African pygmy phenotype is probably a selective adaptation for rainforest hunter-gatherers, according to a new study, but since all African pygmy phenotypes do not have the same genetic underpinning it is likely a m ...
Article - News Staff - Aug 18 2014 - 5:00pm
- Sympatric Speciation: Ant Evidence For Alternate Mechanism Of Species Formation
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Article - News Staff - Aug 21 2014 - 2:02pm