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Latest Natural selection Stories

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2008-11-20 10:08:03

McGill researchers prove Darwin right about how evolution can affect a whole group The highly specialized worker castes in ants represent the pinnacle of social organization in the insect world. As in any society, however, ant colonies are filled with internal strife and conflict. So what binds them together? More than 150 years ago, Charles Darwin had an idea and now he's been proven right. Evolutionary biologists at McGill University have discovered molecular signals that can maintain...

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2008-11-13 11:30:45

A team of Princeton University scientists has discovered that chains of proteins found in most living organisms act like adaptive machines, possessing the ability to control their own evolution. The research, which appears to offer evidence of a hidden mechanism guiding the way biological organisms respond to the forces of natural selection, provides a new perspective on evolution, the scientists said. The researchers -- Raj Chakrabarti, Herschel Rabitz, Stacey Springs and George McLendon --...

2008-11-13 09:00:10

U.S. scientists have discovered the chains of proteins found in most living organisms act as adaptive machines, able to control their own evolution. Princeton University researchers said their finding appears to offer evidence of a hidden mechanism that guides the way biological organisms respond to the forces of natural selection. That, they said, provides a new perspective on evolution. Researchers Raj Chakrabarti, Herschel Rabitz, Stacey Springs and George McLendon made the discovery...

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2008-10-07 15:45:00

A leading British geneticist says that human evolution is coming to an end in the West due to a shortage of fathers over the age of 35, who are more likely to pass on genetic mutations to their children. During a lecture today at University College London (UCL) entitled "Human evolution is over", Professor Steve Jones argued the case that there are three components to evolution "“ mutation, natural selection and random change -- and that the mutation rate is declining.  ...

2008-10-01 15:00:10

DESPITE the impossibility of evolution ever happening, the evolutionist is certain that it has. The rigorously tested scientific evidence of evolution that J. C. Buchanan-Brown talks about is this: "We can make the point that, however improbable the (evolutionary) origin of life might be, we know it happened on Earth because we are here.'' (Richard Dawkins: The God Delusion, p137) He has also stated "I believe, but cannot prove, that all life, all intelligence, all creativity and all...

2008-09-17 03:00:11

By Wilson, David Sloan Wilson, Edward O The process known as group selection was once accepted unthinkingly, then was widely discredited; it's time for a more discriminating assessment Is evolution a team sport, or is the contest for survival played out strictly between individuals? There's no question that natural selection acts on individual organisms: Those with favorable traits are more likely to pass along their genes to the next generation. But perhaps similar processes could operate...

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2008-08-31 12:40:00

Shedding some genetically induced excess baggage may have helped a tiny fish thrive in freshwater and outsize its marine ancestors, according to a UBC study published Thursday in Science Express. Measuring three to 10 centimeters long, stickleback fish originated in the ocean but began populating freshwater lakes and streams following the last ice age. Over the past 20,000 years "“ a relatively short time span in evolutionary terms "“ freshwater sticklebacks have lost their bony...

2008-08-29 03:00:19

By Day, Matthew doi: 10.1017/S0009640708000863 Monkey Trials and Gorilla Sermons: Evolution and Christianity from Darwin to Intelligent Design. By Peter Bowler. New Histories of Science, Technology, and Medicine. Cambridge, Mass.: Harvard University Press, 2007. x + 258 pp. $24.95 cloth. Rummaging around for a title to his now-classic study of the religious movements that rocked central and western New York state during the first half of the nineteenth century, Whitney Cross decided that he...

2008-08-07 09:00:18

Children from a Year 11 science class are walking across the beach on Dorset's Jurassic Coast, picking up pebble after pebble in search of evidence of evolution. For some, the exciting discovery of ammonite fossils hidden inside the rock, and clear explanations from presenter and scientist Richard Dawkins of what they are looking at add enough physical proof to their classroom lesson to convince them that Charles Darwin's theory - first published 150 years ago - is correct. But several of...

2008-08-01 06:00:03

By Nicholas Wade Two groups of researchers hunting for schizophrenia genes on a larger scale than ever before have found new genetic variants that point toward a different understanding of the disease. The variants discovered by the two groups, one led by Dr. Kari Stefansson of Decode Genetics in Iceland and the other by Dr. Pamela Sklar of Massachusetts General Hospital in the United States, are rare. They substantially increase the risk of schizophrenia but account for a tiny fraction...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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