MSN Home  |  My MSN  |  Hotmail
Sign in to Windows Live ID Web Search:   
go to MSNGroups 
Free Forum Hosting
Important Announcement Important Announcement
The MSN Groups service will close in February 2009. You can move your group to Multiply, MSN’s partner for online groups. Learn More
AmericanIdolLoftFairNBalancedContains "mature" content, but not necessarily 
What's New
  Home Page  
  Message Boards  
  Loft Banquet 07  
  2007 Loft Awards  
  Loft Banquet 06  
  2006 Loft Awards  
  American Idol 7  
  Big Brother  
  Big Brother 9  
  Big Brother 8  
  American Idol 6  
  Big Brother 7  
  Canadian Idol 4  
  American Idol 5  
  Rock Star 2  
  Misc 2  
  Countdown: OBAMA  
  * * * 2008 * * *  
  Global Awareness  
  Animal Awareness  
  Animal Rescue  
  Happy Endings  
  Animal Friends  
  2008 NCAA  
  LFL 08-09  
  LFL 07-08  
  LFL 06-07  
  LFL 05-06  
  Book Listings and Recommendations  
  Creative Streak  
  Icons and such  
  Health N Fitness  
  Weather Board  
  Science & Crypto  
  Free Swim  
  Safety Dance  
  FNB Guidelines  
Animal Awareness : New DNA technique may save whales from the Japanese...
Choose another message board
 Message 1 of 2 in Discussion 
From: Jag  (Original Message)Sent: 8/6/2006 8:37 AM
Experts: DNA Technique May Save Whales
Updated: 8:32 p.m. ET Aug 3, 2006

BANGKOK, Thailand - Australian researchers said Thursday that analyzing the skin flakes of some whales could help determine their age, a development that could invalidate one argument for killing them.

Japan has long argued that killing baleen whales, such as humpbacks and minkes, is the only way to determine how old they are, and vital to better understanding the animals' behavior. (But of course, you can tell behavior when they're lying there dead...grrrrr)

Tokyo plans to kill over 1,000 minke whales in 2006, over 400 more than last year and more than double the number it hunted a decade ago, as part of its scientific research program.

But a team at the Southern Cross University Whale Research Center in New South Wales state said DNA in the whale's skin flakes could tell scientists how long they have lived.

"The Japanese have used a whole series of excuses to kill minke whales and their latest excuse is a claim that they need to determine their age," Peter Harrison, the center's director, told The Associated Press.

"Essentially, this (analysis) would mean Japan would no longer be able to kill whales in order to determine their age," he said. "So therefore, they would have to either modify their research program to stop killing whales or admit they are really doing commercial whaling with science as an excuse and therefore change the nature of their whaling program."

Officials at the Japanese Fisheries Agency were not immediately available for comment.

Harrison, whose research was highlighted in this week's Nature magazine, said the new aging method relies on extracting DNA from the skin flakes of humpback whales and looking at telomeres _ structures that cap the end of chromosomes.

The telomeres progressively shorten with age in many animal species and Harrison said he is hopeful they could be used to determine a whale's age.

Harrison said the team _ which is collaborating with Prof. Scott Baker at the University of Oregon in the United States _ has determined that the genetic sequencing of a humpback's telomeres is similar to humans and other species. The next step, he said, is to determine how the lengths of the telomeres decrease with age _ by using the skin samples of 100 living whales of known age already on file at the center.

"There is no theoretical reason why the telomeres analysis techniques that work perfectly well for humans could not be applied to humpback whales," he said. "Therefore, I'm optimistic of success."

Curt Jenner, managing director of the Centre for Whale Research in Western Australia, said the DNA analysis was a technique that "we are all quite hopeful will be viable in the future."

"It would be bloody fantastic if it works because it would make null and void one of the last arguments that the Japanese make for scientific whaling," he said.

"It's certainly feasible but it will be a difficult task. Firstly, you need enough DNA material to do the test and, because it is a new field, they don't have a lot of background to compare it to."

The age of a whale is often determined by extracting their teeth. But since baleen whales have no teeth, the only way to gauge their age is to photograph one each year, or dissect a dead whale, said Jenner.

Copyright 2006 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

First  Previous  2 of 2  Next  Last 
 Message 2 of 2 in Discussion 
From: ConradSent: 8/7/2006 1:55 PM
good idea but that won't stop them. the Japanese will find some other reason to kill the whales, like maybe they'll say that the test isn't accurate or some bullshit like that