Eyeless Mexican Cavefish Still Finds Its Way Around

Sunday, 06 Apr 2014 09:21 AM

By Elliot Jager

Share:
  Comment  |
   Contact Us  |
  Print  
|  A   A  
  Copy Shortlink
The Mexican blind cavefish navigates and measures distances by puckering its mouth and suctioning water to emit sound waves, The Times of Israel reported.

Tel Aviv University researchers discovered that the eyeless fish formally known as Astyanax fasciatus utilizes high frequency suction waves to find its way. Their study results were published in the Journal of Experimental Biology.

Like many fish, to sense movement in close proximity, Astyanax fasciatus has receptive organs sensitive to changes in water pressure on its skin. The Mexican blind cavefish has the additional capacity to purposefully detect non-moving obstacles using this organ found along the sides of its body. The closer the fish comes to non-moving obstacles, the more suction action can be observed.

The team, including Roi Holzman, Shimrit Perkol-Finkel and Gregory Zilman, described the method as similar to echolocation, which is how bats and dolphins, among other animals, judge how far away from objects they are. The Mexican blind cavefish also emit sound waves, though unlike bats and dolphins they do not calculate the time it takes sound to bounce back, instead the fish measure water pressure changes on their skin.

Chances are good that other fish also employ the same mechanism for navigation, Holzman told  Live Science.

"It's a mechanism made out of ancient material, and it just makes sense that other fish would have it," Holzman said. ”We haven't tested it yet, but I'd really like to."

Related Stories:



© 2014 Newsmax. All rights reserved.

Share:
  Comment  |
   Contact Us  |
  Print  
  Copy Shortlink
Around the Web
Join the Newsmax Community
Please review Community Guidelines before posting a comment.
>> Register to share your comments with the community.
>> Login if you are already a member.
blog comments powered by Disqus
 
Email:
Country
Zip Code:
Privacy: We never share your email.
 
Hot Topics
Follow Newsmax
Like us
on Facebook
Follow us
on Twitter
Add us
on Google Plus
Around the Web
Top Stories
You May Also Like

Derek Jeter Launches site to Connect Athletes to Fans

Wednesday, 01 Oct 2014 08:18 AM

Derek Jeter was one of the world's most covered athletes in media during his 20-season career with the New York Yankees. . . .

600-Year-Old Canoe Found in New Zealand Has Ties to Polynesian Sailors

Wednesday, 01 Oct 2014 07:16 AM

A 600-year-old canoe discovered in New Zealand has given scientists and historians new insight into the people of the So . . .

Microsoft Announces Windows 10, Skips 9 as a 'Marketing Gimmick'

Wednesday, 01 Oct 2014 07:06 AM

Microsoft announced Windows 10 this week, surprising consumers who anticipated that version 9 would naturally follow 201 . . .

Most Commented

Newsmax, Moneynews, and Independent. American. are registered trademarks of Newsmax Media, Inc. Newsmax TV, NewsmaxWorld, NewsmaxHealth, are trademarks of Newsmax Media, Inc.

 
NEWSMAX.COM
America's News Page
©  Newsmax Media, Inc.
All Rights Reserved