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Scientists Study The Scream Of The Squirrel

SimianOverlord writes "The BBC details a recent breakthrough in Squirrel to Man understanding. Scientist James Hare, in his study of the North American Ground Squirrel, noted peculiar behaviour; they appeared to 'lose their voice' while communicating, producing only a 'breathy whisper' in sound ranges audible to the human ear. On a hunch, the intrepid boffin borrowed a 'bat detector', which translates inaudible ultrasound into the human hearing range, and discovered the Squirrels were using a whole range of distinct ultrasound messages which can give gradated threat warnings or be targetted to family members, all without any predators detecting the message, or easily pinpointing the location of the caller. Though it has been known for some time rodents use ultrasound, this is believed to be the first time that it has a proven purpose, and the content of the messages have been deciphered."

43 comments

  1. Well... by hookedup · · Score: 4, Funny

    If they need to capture specimens to test, there's always this method.

    1. Re:Well... by Anonymous Coward · · Score: 1, Funny

      And after we have enough specimens, we should be able to tell if they're all as evil as we thought! http://www.deadsquirrel.com/

  2. Each other by dabug911 · · Score: 1

    Now if we could just learn to understand eachother we would be set.

    --
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    1. Re:Each other by RealityMogul · · Score: 1

      I wish they'd understand that when I put new screening up in the attic windows, it's not suppose to be a game for them to see who can chew through it first.

  3. Bushy-Tailed Rats by pipingguy · · Score: 1, Interesting
  4. Ground squirrels = gophers by jgaynor · · Score: 3, Funny

    Crazy Brits - apparently the call gophers 'ground squirrels'. Squirrels, as we all well know, communicate by singing in poorly made flash movies.

    1. Re:Ground squirrels = gophers by will_die · · Score: 2, Informative

      Actually it is more of an american problem.
      Gophers are members of the Geomyidae and native to the Americas.
      The creature from this study is a Spermophilus richardsonii, family Sciuridae, commonly known as the Richardson's Ground Squirrel.
      However it is very common in the US to call any larger ground based burrowing rodents a gopher.

    2. Re:Ground squirrels = gophers by dnahelix · · Score: 1

      Here are some pictures of the gopher, I mean Richardson's Ground Squirrel.

      ps. I love Ray Bradbury, but he's old and wrong.

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    3. Re:Ground squirrels = gophers by molo · · Score: 1

      However it is very common in the US to call any larger ground based burrowing rodents a gopher.

      Hrm, no, not really. Most people use specific names. eg: Woodchuck Prairie dog California Ground Squirrel

      Maybe "gopher" is more commonly used in the southern vocabulary?

      -molo

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    4. Re:Ground squirrels = gophers by Anonymous Coward · · Score: 0

      hm. Well, we all call them "prairie dogs" where we are. They're very popular in the zoo, because they're so cute. I actually thought gophers and prairie dogs were different, but actually, seems that they're the same thing ?

    5. Re:Ground squirrels = gophers by Anonymous Coward · · Score: 0

      Almost, but not quite. Gophers are also known as ground hogs, not ground squirrels. Brits might be crazy, but I they know the difference between a small rodent with a bushy tail and a large rodent with hardly any tail.

  5. Content of squirrel messages by OgdEnigmaX · · Score: 2, Funny

    It's been shown that not only do squirrels communicate with each other for practical purposes, but they also have a fairly sophisticated system of music. Quoth the small woodland bard:

    When you're a kid and you wanna go "wheeeee," but you ain't got drugs yet
    You hold out for your life
    Hold on to your little gonads...and strife.


    We could learn a lot from the little guys, no?

  6. wow by Tumbleweed · · Score: 3, Funny

    That's pretty nutty stuff.

    1. Re:wow by Tackhead · · Score: 1
      > That's pretty nutty stuff.

      Funny you should say that...

  7. Nice to know such important research happens by Chemisor · · Score: 0, Troll

    It is nice to know that we are spending time on such important research as the decoding the screams of squirrels or measuring the airspeed of unladen swallows. After all, who needs all that knowledge about molecular manufacturing, or stem cells, or space flight? Write to your congressman and commend them for contributing so greatly to the progress of science.

    1. Re:Nice to know such important research happens by Anonymous Coward · · Score: 2, Insightful

      Why do you think that doing research in one area detracts from research in another?

      Using your logic, we should be mad at you for spending time on Slashdot instead of using that time researching "molecular manufacturing, or stem cells, or space flight".

      Get on it, you lazy bum!

  8. Something that I'm missing? by Itsik · · Score: 1

    Apart from the fact that we now know that they use a wider range of sound frequencies isn't it somewhat presumtuous to say that the "...content of the messages have been deciphered."

  9. Leaf Guard . . . by Dausha · · Score: 2, Funny

    Unbeknownst to those scientists, the Leaf Guard gutter people have been using the ultrasound detectors for some time. If you've heard the radio commercials (or seen the commercials on cable), you'll note that the squirrels are speaking in full, English sentences.

    That might seem extraordinary, but consider that the squirrels in question live in North America, it's pretty obvious that they'd start picking up our language. However, there are small enclaves of squirrels who speak Spanish and other languages. Just goes to show what a blended society the squirrels have.

    Seriously though, I'm surprised this discovery hadn't aleady happened. Heck, if I had a ultrasonic-to-sonic thing-a-ma-jig like that, I'd have pointed it at all sorts of things by now--people, birds (who says what we hear is all they squawk), squirrels, cars, etc.

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  10. I am, you insensitive clod! by Anonymous Coward · · Score: 2, Funny

    I am researching molecular manufacturing. I'm just waiting for the damn compiler to finish.

    1. Re:I am, you insensitive clod! by Anonymous Coward · · Score: 0

      I tried that same compiler. Took nine months, and the output now need CONSTANT ATTENTION to deal with the mess when it craps out. Fucking 1.0 version, or something.

  11. And if you'll notice here... by Wandering+Wombat · · Score: 4, Funny

    ... at 31,357 Hz, it clearly means "That big thing with the bat-detector is starting to freak me out. Lets bite his nuts."

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  12. But it does detract. It detracts money. by Chemisor · · Score: 1

    Specifically, it detracts funding from important projects into these rather pointless studies. Should we not spend money on researching asteroid mining or something, before we decide to fund studies of the sex life of squirrels?

  13. From a whisper to a scream. by sporktoast · · Score: 1


    I wonder what kind of ultrasonic scream the squirrel mentioned here (Squirrel Cop) made.

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  14. Don't listen! by CyberDong · · Score: 0, Offtopic

    They're evil, and they're out to get us. Think of the children!

  15. Teaching aids by Engineer-Poet · · Score: 1
    If you used devices to reinforce the instruction and recall, perhaps they wouldn't repeat their mistakes.

    Some wires across the outside of the screens, hooked to the flash capacitor of a scrap disposable-camera flash unit, might do the trick. You'll have to find a way to force the unit on, though; if it stays off for too long all the charge will leak away and its usefulness as a memory aid will be nil.

  16. Hmm.... by GreyOrange · · Score: 1

    So thats how Dr. Doolittle communicated with the rodents.(Ultrasound message follows).

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  17. Content of the message was... by psyconaut · · Score: 1

    "Send more acorns...our base is under attack!"

  18. Yes! by Jahf · · Score: 1

    All RIGHT! Now I can finally get a properly designed squirrel call! The one I've got drives em nuts for a minute or two, but they adapt. Johnny Stewart, get me an ultrasonic squirrel call NOW!

    BTW, these things can also be made to sound like small monkeys if you close your hand over the opening, waggle the rubber part, and repeatedly allow the opening to open/close :)

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  19. Squirrel translator by jtheory · · Score: 1

    Reminds me of one of my favorite Far Side cartoons; there's a professor-type guy walking down the street testing his new dog language translator... and there's an angry dog saying "Hey! Hey! Hey!!" at a mailman, a lonely dog howling "Heeeyyyyy" on a hill, an excited dog saying "Hey!" as its owner offers a treat.

    I have a suspicion the squirrel communication is much along the same lines.

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  20. They can communicate, sure, but... by Transcendent · · Score: 1

    ...now they just need to learn how to dodge a damn car in the road!

    They seem smart in that article, but driving home today I'll probably watch one sitting on the curb, and for some reason runs across the road ONLY when the car is in range... not to mention the ones that run back and forth trying to dodge it - the ones that get all the way across and for some reason decide to run back across the road (and into the car).

    Smart communicators, dumb survivors.

  21. now wiv zee ultrasound detector by The+Unabageler · · Score: 4, Funny

    pesky moose and squirrel can no longer evade me!

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  22. Greasy Grimy Gopher Guts by Marxist+Hacker+42 · · Score: 1

    At Oregon Institute of Technology, Klamath Falls, when I was there, the mating screams in spring just as we were trying to study for finals were always quite loud. As we had a large number of paintball geeks in the dorms, it was not unheard of to see pink, purple, flourescent yellow or orange ground squirels around campus during that time...I had no idea that the reason a whole nest of the suckers would go quiet when shot with a paint gun was because they switched to ultrasound.

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    1. Re:Greasy Grimy Gopher Guts by nytes · · Score: 5, Funny

      Squirrel 1: Sir, we are under attack.
      Squirrel 2: Raise shields.
      Squirrel 1: [Holds up large leaf with hole in it] Our shields are no match for their weapon systems, sir. But I believe that if we remodulate our communication frequencies, we will be undetectable to the enemy.
      Squirrel 2: Make it so.

      --
      -- I have monkeys in my pants.
  23. Or vice-versa... by R2.0 · · Score: 4, Insightful

    You realize that if this post was about research into asteroid mining, your alter ego would be saying "Why are we spending money on something so pointless when we could be trying to better understand the ecosystem where we live right now?"

    It all depends on whose ox is gored.

    --
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  24. They are out to get us! by Hinkkanen · · Score: 1
  25. I wonder how to build by IBX · · Score: 1

    a squirell-powered ultrasonic cleaning bath. There have been some solar panel-powered phones on the market already and I think our SquirellSonic(R) baths would be just as enviro-friendly and operate in outdoor setting.

    I would maybe start with 2 product lines -the "Squirrel Companion" budget version (for university labs) and the heavy-duty "Squirrel Endeavor" model for demanding industry application. (Made of stainless steel and Teflon, with remote control and featuring multiple slots for up to 6 squirrels in tandem configuration).

  26. Dog whistles... by gardyloo · · Score: 1

    I suppose that rattlesnakes and hawks are the squirrels' main predators, but surely coyotes have to take a toll. And if coyotes can hear those "silent" dog whistle things that we all know and love, then who's to say this silent scream stuff is really all that "selective" as the article says. Of course, ultrasound attenuates a bit faster than lower frequencies, so maybe it simply doesn't call predators from far away, and, instead, warns one's close neighbors.

  27. Their next project: by Alsee · · Score: 1

    How many woodchuck chips would a woodchuck-chipper chuck if Chuck would chuck a woodchuck in a woodchuck-chipper?

    -

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  28. hmm by Anonymous Coward · · Score: 0

    So you're telling me that Dr. _Hare_ is studying squirrels? I'd say that's at least one count against his credibility.

  29. and they say..... by Anonymous Coward · · Score: 0

    all your base are belong to nuts.

  30. Little Fuzzy by Chuck1318 · · Score: 2, Interesting

    Anyone remember the Little Fuzzy books by H. Beam Piper? The humans colonizing the planet Zarathustra think the little native bipeds can't pass the "talk and build a fire" test for intelligence until they start to listen in the ultrasonic range. . .