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Tuesday, June 19, 2007

Complex central nervous systems developed early, new findings suggest

The complex vertebrate nervous system is very old, according to recent findings at the European Molecular Biology Laboratory, published in Cell, and is descended from a common ancestor of worms and vertebrates.
The rise of the central nervous system [CNS] in animal evolution has puzzled scientists for centuries. Vertebrates, insects and worms evolved from the same ancestor, but their CNSs are different and were thought to have evolved only after their lineages had split during evolution. Researchers from the European Molecular Biology Laboratory [EMBL] in Heidelberg now reveal that the vertebrate nervous system is probably much older than expected. The study, which is published in Cell, suggests that the last common ancestor of vertebrates, insects and worms already had a centralised nervous system resembling that of vertebrates today.
and therefore
Such a complex arrangement could not have been invented twice throughout evolution, it must be the same system," adds Gáspár Jékely, a researcher from Arendt's lab, who contributed essentially to the study.

Which means, in turn, that there was even less time for complex nervous systems to get started "purely by chance" than has previously been supposed. No wonder thre is an intelligent design controversy.


My other blog is the Mindful Hack, which keeps tabs on neuroscience and the mind.

If you like this blog, check out my book on the intelligent design controversy, By Design or by Chance?. You can read excerpts as well.

Are you looking for one of the following stories?

NEW!! Evolution in the light of intelligent design - look up intelligent design topics here.

Animations of life inside the cell, indexed, for your convenience.

Anti-God crusade ... no, really! My recent series on the spate of anti-God books, teen blasphemy challenge, et cetera, and the mounting anxiety of materialist atheists that lies behind it.

Catholic Church A summary of the Catholic Church's entry into the controversy, essentially on the side of ID.

Collins, Francis My review of Francis Collins’ book The Language of God

Columnists weigh in on the intelligent design controversy A summary of recent opinion columns on the ID controversy

Darwinism dissent Lists of theoretical and applied scientists who doubt Darwin

Gilder, George A summary of tech guru George Gilder's arguments for ID and against Darwinism

Intelligent design academic publications.

Intelligent design-friendly students should be flunked, according to bio prof Evolutionary biologist’s opinion that all students friendly to intelligent design should be flunked.

Intelligent design controversy My U of Toronto talk on why there is an intelligent design controversy, or my talk on media coverage of the controversy at the University of Minnesota.

Intelligent design controversy timeline An ID Timeline: The ID folk seem always to win when they lose.

Intelligent design and culture My review of sci-fi great Rob Sawyer’s novel, The Calculating God , which addresses the concept of intelligent design.

March of the Penguins A critical look at why March of the Penguins was thought to be an ID film.

Origin of life Why origin of life is such a difficult problem.

Peer review My backgrounder about peer review issues.

Polls relevant to the intelligent design controversy A summary of recent polls of US public opinion on the ID controversy

Stove, David O'Leary's intro to non-Darwinian agnostic philosopher David Stove’s critique of Darwinism.

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