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Latest Evolution Stories

Study Proves Darwin's Theory That Productivity Increases Species Diversity
2013-05-14 06:49:07

April Flowers for redOrbit.com - Your Universe Online Charles Darwin predicted that a plot of land growing distantly related grasses would be more productive than a plot with a single species of grass in On The Origin of Species, first published in 1859. Over 150 years later, a new study from the University of Toronto Scarborough (UTSC), reveals Darwin was right; environments containing species that are distantly related to one another are more productive than those containing closely...

2013-05-01 12:35:26

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit as a whole. A new study has found that a yeast colony dominated by non-producers ('cheaters') is more likely to face extinction than one consisting entirely of producers ('co-operators'). The findings, published April 30 in the open access journal PLOS Biology by Alvaro Sanchez and Jeff...

2013-04-30 23:21:18

A team of researchers at the University of Massachusetts Amherst is proposing a new investigative roadmap for the field of evolutionary developmental biology, or “evo devo,” to better understand how innovation at the genetic level can lead to ecological adaptations over time. Evo devo seeks to understand the specific genetic mechanisms underlying evolutionary change. Seven UMass Amherst authors, all biologists but with diverse research programs including evolutionary genetics,...

Algorithm Shows Evolution Of Soft Robots
2013-04-23 18:57:19

Lee Rannals for redOrbit.com — Your Universe Online A group of researchers from Cornell University's Creative Machines Lab say they have developed an algorithm that can be used to witness virtual creatures evolving. The team wrote in their paper titled "Unshackling Evolution: Evolving Soft Robots With Multiple Materials and a Powerful Generative Encoding" in the journal Proceedings of the Genetic and Evolutionary Computation Conference about their algorithm. They said the...

2013-04-19 17:52:23

An international research team including Christian Schlötterer and Alistair McGregor of the Vetmeduni Vienna has discovered a completely new mechanism by which evolution can change the appearance of an organism.  The researchers found that the number of hairs on flies´ legs varies according to the level of activity of a so-called microRNA.  The results, published in the journal Current Biology, shed a completely new light on the molecular mechanisms of evolution....

2013-04-18 21:58:39

Selection in European populations of genes regulated by FOXP2, a key factor in development and language Researchers have designed a method that can universally test for evolutionary adaption, or positive (Darwinian) selection, in any chosen set of genes, using re-sequencing data such as that generated by the 1000 Genomes Project. The method identifies gene sets that show evidence for positive selection in comparison with matched controls, and thus highlights genes for further functional...

2013-04-12 16:03:19

Evolution skeptics argue that some biological structures, like the brain or the eye, are simply too complex for natural selection to explain. Biologists have proposed various ways that so-called 'irreducibly complex' structures could emerge incrementally over time, bit by bit. But a new study proposes an alternative route. Instead of starting from simpler precursors and becoming more intricate, say authors Dan McShea and Wim Hordijk, some structures could have evolved from complex...

2013-04-09 13:05:44

A University of Leeds-led study, published in the journal Ecology Letters, overturns the common assumption that evolution only occurs gradually over hundreds or thousands of years. Instead, researchers found significant genetically transmitted changes in laboratory populations of soil mites in just 15 generations, leading to a doubling of the age at which the mites reached adulthood and large changes in population size. The results have important implications in areas such as disease and...

Paternal Cues Heavily Influence Mate Choice In Mice
2013-03-28 16:35:39

Max-Planck-Gesellschaft Hybrid offspring of different house mice populations show a preference for mating with individuals from their father's original population Mate choice is a key factor in the evolution of new animal species. The choice of a specific mate can decisively influence the evolutionary development of a species. In mice, the attractiveness of a potential mate is conveyed by scent cues and ultrasonic vocalizations. Researchers from the Max Planck Institute for Evolutionary...

2013-03-21 16:11:34

Findings about testosterone levels illuminate how humans evolved to form alliances After outgrowing teenage infatuations with the girl next door, adult males seem to be biologically designed to avoid amorous attractions to the wife next door, according to a University of Missouri study that found adult males´ testosterone levels dropped when they were interacting with the marital partner of a close friend. Understanding the biological mechanisms that keep men from constantly competing...


Latest Evolution Reference Libraries

Paleontology
2014-01-12 00:00:00

Paleontology or Palaeontology is the scientific study of prehistoric life, including the study of fossils to determine the organisms evolution and interactions with each other and their environments. Paleontological observations have been documented as far back as 5th century BC. The science became established in the 18th century as a result of Georges Cuvier’s work on comparative anatomy, and it developed quickly within the 19th century. The term itself comes from Greek palaios, meaning...

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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