Jul. 31, 2014 6:13 pm
Question
Welcome!
|
||
Logout|My Dashboard

Mote study: Sharks sense prey in surprising ways

Print
Font Size:
Default font size
Larger font size

Related Stories

Posted: Thursday, April 3, 2014 5:07 pm

SARASOTA, Fla. - A new study six years in the making was released Wednesday from Mote Marine Laboratory in Sarasota. The study was part of a half million dollar grant funded by the National Science Foundation.

Three types of sharks were observed to see what senses they use while catching prey: the nurse shark, the blacktip, and bonnetheads.

It turns out sharks have five senses: sight, touch, smell, lateral lines and electroception. And they can use any of their senses to hunt.

“We found that it doesn't just come down to one sense. They are using different senses at different distances from the source. And the other interesting thing is that they are very flexible. So even if they are missing their preferred cue, they can sometimes switch to an alternate sensory cue to accomplish the behavior,” says Mote post-doctoral fellow Jayne Gardiner.

The complete study can be viewed HERE.

Gardiner says next she plans to research how sharks go back to the area they were born to reproduce. Sharks travel very long distances and find the exact location, and researchers want to know exactly how that is done.

Rules of Conduct

  • 1 Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language.
  • 2 Don't Threaten or Abuse. Threats of harming another person will not be tolerated. AND PLEASE TURN OFF CAPS LOCK.
  • 3 Be Truthful. Don't knowingly lie about anyone or anything.
  • 4 Be Nice. No racism, sexism or any sort of -ism that is degrading to another person.
  • 5 Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts.
  • 6 Share with Us. We'd love to hear eyewitness accounts, the history behind an article.

Welcome to the discussion.

1 comment:

  • bgrnathan posted at 11:03 am on Fri, Apr 4, 2014.

    bgrnathan Posts: 5

    NOT MADE BY NATURE! Just because something exists in nature doesn't mean it was invented or made by Nature. If all the chemicals necessary to make a cell were left to themselves, "Mother Nature" would have no ability to organize them into a cell. It requires an already existing cell to bring about another cell. The cell exists and reproduces in nature but Nature didn't invent or design it! Nature didn't originate the cell or any form of life. An intelligent power outside of nature had to be responsible.

    Natural laws can explain how an airplane or living cell works, but it's irrational to believe that mere undirected natural laws can bring about the origin of an airplane or a cell. Once you have a complete and living cell then the genetic program and biological machinery exist to direct the formation of more cells, but how could the cell have originated naturally when no directing code and mechanisms existed in nature? All of the founders of modern science believed in God. Read my Internet article: HOW FORENSIC SCIENCE REFUTES ATHEISM

    Only evolution within "kinds" is genetically possible (i.e. varieties of dogs, cats, etc.), but not evolution across "kinds" (i.e. from sea sponge to human). How did species survive if their vital tissues, organs, reproductive systems were still evolving? Survival of the fittest would actually have prevented evolution across kinds! Read my Internet article: WAR AMONG EVOLUTIONISTS! (2nd Edition). I discuss: Punctuated Equilibria, "Junk DNA," genetics, mutations, natural selection, fossils, genetic and biological similarities between species.

    Natural selection doesn't produce biological traits or variations. It can only "select" from biological variations that are possible and which have survival value. The real issue is what biological variations are possible, not natural selection. Only limited evolution, variations of already existing genes and traits are possible. Nature is mindless and has no ability to design and program entirely new genes for entirely new traits.

    What about genetic and biological similarities between species? Genetic information, like other forms of information, cannot happen by chance, so it is more logical to believe that genetic and biological similarities between all forms of life are due to a common Designer who designed similar functions for similar purposes. It doesn't mean all forms of life are biologically related! Also, "Junk DNA" isn't junk. These "non-coding" segments of DNA have recently been found to be vital in regulating gene expression (i.e. when, where, and how genes are expressed). Read my popular Internet article: HOW FORENSIC SCIENCE REFUTES ATHEISM

    Read my popular Internet article, HOW DID MY DNA MAKE ME?

    Visit my newest Internet site: THE SCIENCE SUPPORTING CREATION

    Sincerely,
    Babu G. Ranganathan*
    (B.A. theology/biology)

    * I have had the privilege of being recognized in the 24th edition of Marquis "Who's Who In The East" for my writings on religion and science, and I have given successful lectures (with question and answer time afterwards) defending creation from science before evolutionist science faculty and students at various colleges and universities

     
Webcams

Arctic Sunrise Webcam Esperanza webcam