Online Journal
Front Page 
 Odd News

World Last Updated: Mar 15th, 2011 - 14:12:03

Tiger Sharks Shown to Have Incredible Mental Capabilities
David Hope
Mar 14, 2011, 10:15

Email This Article
Printer Friendly Page
Tiger sharks seem capable of forming "mental maps" of their home ranges, allowing them to navigate from locations many miles away, U.S. researchers say.

Researchers at the Florida Museum of Natural History analyzed data from tiger sharks tagged with transmitters, and found that they took "directed" paths from place to place, whereas other shark species did not exhibit the behavior, the BBC reported Wednesday.

Researchers suggest tiger sharks are able to store and recall maps of key sites and navigate between them, possible utilizing Earth's magnetic field.

Previous research in Hawaii had shown sharks of the same species swimming across deep channels and finding shallow banks rich in food 30 miles away.

In that study, scientists used statistical techniques to show the journeys were not made by accident but the sharks were following some kind of path.

"Our research shows that, at times, tiger sharks and thresher sharks don't swim randomly but swim to specific locations," said research leader Yannis Papastamatiou from the Florida Museum of Natural History.

"Simply put, they know where they are going," he said. "They have to have a pretty good navigation system because the distances are great."

Tiger sharks can cover huge distances, researchers say, and tags have been recovered from individual sharks more than 1,800 miles away from where they were attached.

Source: UPI

Copyright © 1998-2011 Online Journal
Email Online Journal Editor

Top of Page

Latest Headlines
Bahrain Protesters Driven Out of Square by Armed Troops
Raymond Davis, CIA Contractor, Freed from Pakistani Jail
Gilbert Gottfried Issues Apology for Offensive Tweets
Emperor Akihito Addresses Japanese People on Nuclear Crisis
Nuclear Power Plants Shut Down as Part of Moratorium
Earthquake Search & Rescue Efforts Become Confusing
Japan Radiation Leak a "Worrisome Situation" for PM
Yemen Protests Turn Violent as Security Forces Fire Tear Gas
Clean Energy Back in Focus After Nuclear Scare
Earth's Rotation Speed Altered by Japanese Earthquake
Bahrain Invasion Begins as Efforts to Save Country's Government Continue
Tiger Sharks Shown to Have Incredible Mental Capabilities
Moammar Gadhafi Regains Control of Libyan Oil Facilities
Tablet Computers Redefine How News is Accessed
Interest Rates & Confidence Concerns Prompt Japan to Pump $220 Billion Into Economy
Red Cross Says Libya Has Descended Into Civil War
Japan Volcano Eruption Adds to Turmoil
Aftershocks a Challenge to Japanese Rescue Efforts
Japan Nuke Plant Area Evacuated
8.9 Earthquake Only the Beginning for Japanese

Home | About Us | Authors | Contact Us | Privacy Policy | Terms Of Use | Top