The ID Report
Post details: Blind cave fish: Evolution or devolution?
09/17/10
Blind cave fish: Evolution or devolution?
by Denyse O'Leary
ARN correspondent
Adapting to Darkness: How Behavioral and Genetic Changes Helped Cavefish Survive Extreme Environment
Becoming eyeless is an adaptation of sorts, no?
ScienceDaily (Sep. 15, 2010) - University of Maryland biologists have identified how changes in both behavior and genetics led to the evolution of the Mexican blind cavefish (Astyanax mexicanus) from its sighted, surface-dwelling ancestor. In research published in the August 12, 2010 online edition of the journal Current Biology, Professor William Jeffery, together with postdoctoral associates Masato Yoshizawa, and Å pela Goricki, and Assistant Professor Daphne Soares in the Department of Biology, provide new information that shows how behavioral and genetic traits coevolved to compensate for the loss of vision in cavefish and to help them find food in darkness.
This is the first time that a clear link has been identified between behavior, genetics, and evolution in Mexican blind cavefish, which are considered an excellent model for studying evolution.
Actually, to the extent that the cavefish lost a trait rather than gained one, what we are studying here is devolution rather than evolution. Just how the main different types of eye evolved is a fascinating topic. How traits can get lost is interesting too, but not as relevant to the question of how great gains in information really occur.
Toronto-based Canadian journalist Denyse O'Leary (www.designorchance.com) is the author of the multiple award-winning By Design or by Chance? (Augsburg Fortress 2004), an overview of the intelligent design controversy. She was named CBA Canada's Recommended Author of the Year in 2005 and is co-author, with Montreal neuroscientist Mario Beauregard, of The Spiritual Brain: A neuroscientist's case for the existence of the soul (Harper 2007).
Pingbacks:
No Pingbacks for this post yet...
The ID Report
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| << < | > >> | |||||
| 1 | 2 | 3 | 4 | 5 | ||
| 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 27 | 28 | 29 | 30 | 31 | ||
Search
Categories
Archives
- August 2012 (1)
- January 2012 (1)
- December 2011 (20)
- November 2011 (29)
- October 2011 (36)
- September 2011 (29)
- August 2011 (35)
- July 2011 (28)
- June 2011 (26)
- May 2011 (23)
- April 2011 (23)
- March 2011 (25)
- more...
Linkblog
Links - Groups and Organizations
- Access Research Network
- Discovery Institute
- Evolution News Blog
Evolution has become a favorite topic of the news media recently, but for some reason, they never seem to get the story straight. The staff at Discovery Institute's Center for Science and Culture started this Blog to set the record straight and make sure you knew "the rest of the story".
- Intelligent Design Network (IDNet)
- Intelligent Design Undergraduate Research Center
- Intelligent Reasoning
A blogger from New England offers his intelligent reasoning.
- International Society for Complexity, Information, and Design (ISCID)
- Telic Thoughts
We are a group of individuals, coming from diverse backgrounds and not speaking for any organization, who have found common ground around teleological concepts, including intelligent design. We think these concepts have real potential to generate insights about our reality that are being drowned out by political advocacy from both sides. We hope this blog will provide a small voice that helps rectify this situation.
- The Design Inference - The Writings of William A. Dembski
- The Intelligent Design and Evolution Awareness Center (IDEA)
- www.themonkeytrial.com
Website dedicated to comparing scenes from the "Inherit the Wind" movie with factual information from actual Scopes Trial. View 37 clips from the movie and decide for yourself if this movie is more fact or fiction.
Links - Of General Interest
- A Brief View of Time and Those That Live There
Don Cicchetti blogs on: Culture, Music, Faith, Intelligent Design, Guitar, Audio
- A Quick Guide to Sequenced Genomes
- ARN Related Web Links
- Creation/Evolution Quotes
Australian biologist Stephen E. Jones maintains one of the best origins "quote" databases around. He is meticulous about accuracy and working from original sources.
- CreationEvolutionDesign
Most guys going through midlife crisis buy a convertible. Austrialian Stephen E. Jones went back to college to get a biology degree and is now a proponent of ID and common ancestry.
- Darwinian Fairytales by David Stove
Complete zipped downloadable pdf copy of David Stove's devastating, and yet hard-to-find, critique of neo-Darwinism entitled "Darwinian Fairytales"
- ID The Future
Intelligent Design The Future is a multiple contributor weblog whose participants include the nation's leading design scientists and theorists: biochemist Michael Behe, mathematician William Dembski, astronomer Guillermo Gonzalez, philosophers of science Stephen Meyer, and Jay Richards, philosopher of biology Paul Nelson, molecular biologist Jonathan Wells, and science writer Jonathan Witt. Posts will focus primarily on the intellectual issues at stake in the debate over intelligent design, rather than its implications for education or public policy.
- John Mark Reynolds Blog
A Philosopher's Journey: Political and cultural reflections of John Mark N. Reynolds. Dr. Reynolds is Director of the Torrey Honors Institute at
Biola University.
- NASA Astronomy Picture of the Day
Misc
Syndicate this blog 
What is RSS?
powered by
Original template design by François PLANQUE.
