Home Site Map Make Your Home Page Suggestions Enquiry Advertise With Us
Monday, November 23, 2009  
 
 
Press Releases
Features
Events
Special Articles
News Home
   
  News Updated on Monday, November 23, 2009 5:52:50 AM
» India » Asia » World » Sports » Business » Sci-Tec » Health » Entertainment » Have your say » Picture Gallery
Top Stories
  India
  Asia
  World
  Sports
  Business
  Sci-Tec
  Health
  Entertainment
 
 Science

Evolutionary answer to flatfish eye enigma
Chicago | July 11, 2008 12:01:13 AM IST
 

Fossils of two ancient flatfish prove the fish's asymmetrical, one-sided eye arrangement is a result of evolution, a study published Thursday said.

The highly specialized group of bottom-feeding fish -- which include sole, plaice, turbot, flounder and halibut -- originally had its eyes on both sides of its head, but one eye migrated over millions of years, 28-year-old University of Chicago doctoral student Matt Friedman said in an article published in the scientific journal Nature.

Until now, scientists have largely assumed the flatfish eye arrangement must have arisen suddenly because they could not see a benefit if it took millions of years, the Chicago Tribune reported.

Even Charles Darwin had trouble answering critics who used flatfish eyes as an argument against his evolutionary theory after he published it in 1859, the newspaper said.

But Friedman found several examples of different types of flatfish -- including a 50 million-year-old fossil recovered Verona,Italy -- that clearly showed one eye socket near the top of the skull, suggesting the eyes were in transit to the other side of the face, Friedman said.

In addition, a misclassified fossil that turned out to be an entirely new flatfish genus showed eyes clearly is in the transitional stage, he said.

(UPI)

  Viewer's Comment
Comments Not Available
 
 More Stories

Pak not done enough to against 26/11 perpetrators: PM 

India favours legally-binding outcome at Copenhagen 

Afghan Aircraft makes emergency landing 

Savitriamma, Chief Minister\'s sister dies of illness 

PM greeted in Washington by cheering crowd of Indians 

PM arrives in Washington on four-day state visit 

Centre ready for talks with Maoists: Minister 

Police lathicharge JNU students 


Print this Page
Printer Friendly Version
E-Mail this page to a Friend
Send This page to A Friend

Search Archives :  



Quick Links - Webindia123.com
Services
Hobbies
Entertainment
Classifieds
Career / Education
UK, USA, Canada
Utilities
E-Booking
India Reference
 
 
 
 
 
 
 
 
 
IndianStates
 
 
 
 
  
 
 
 
 
Pradesh

Copyright 2000-2009 Suni Systems (P) Ltd.
All rights reserved