Slashdot Mirror


Trap-Jaw Ants Break Speed Records With Jaws

Ant writes to tell us UC Berkeley News is reporting that a species of Ant native to Central and South America is setting speed records with their jaws. The trap-jaw ant has been clocked closing its mandibles at between 78 and 145 miles per hour, said to be the "fastest self-powered predatory strike in the animal kingdom". In addition to blinding speed the ants have also been taped using their jaws to fling themselves into the air.

40 of 166 comments (clear)

  1. The jaw is quicker than the eye by MECC · · Score: 5, Funny

    The average duration of a strike was a mere 0.13 milliseconds, or 2,300 times faster than the blink of an eye.The average duration of a strike was a mere 0.13 milliseconds, or 2,300 times faster than the blink of an eye.

    Notice that at no time do my jaws leave my head...

    --
    "We are all geniuses when we dream"
    - E.M. Cioran
    1. Re:The jaw is quicker than the eye by wiggles · · Score: 5, Funny

      Meh. This is nothing. My girlfriend can flap her jaws much faster than this.

    2. Re:The jaw is quicker than the eye by JesseL · · Score: 5, Funny

      There is still some debate as to whether a computer simulation of a woman can be called a "girlfriend".

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
  2. More on-topic than ever before by alx5000 · · Score: 5, Funny
    It's no wonder, then, that O. bauri ants can launch themselves into the air with a mere snap of their jaws, achieving heights up to 8.3 centimeters and horizontal distances up to 39.6 centimeters.
    I, for one, welcome our new [jaw-propelled] insect overlords!
    Perhaps less impressive is the ants' apparent inability to control the direction of their jumps, or even their orientation when landing.
    Or maybe not...
    --
    My 0.02 cents
    1. Re:More on-topic than ever before by Red+Flayer · · Score: 4, Funny
      The researchers suggest that the "popcorn effect" of multiple ants jumping at once may also serve to help them escape by confusing potential predators.


      Sounds to me like they'll ever make it in the US anyway -- disguising yourself as a tast salty morsel is pretty poor mimicry from an evolutionary standpoint.

      Do they come in butter flavor?
      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    2. Re:More on-topic than ever before by Gulthek · · Score: 2, Interesting

      Mousepad: He's using his cliches again.
      Donbot: How many times is that, two or three?
      Clamps: Three.
      Donbot: All right, that's the necessary number of times. That hackneyed writer's going
                          to have a little on-the-job "accident."

    3. Re:More on-topic than ever before by Lord_Dweomer · · Score: 2, Informative
      So THAT'S what they stick inside Mexican Jumping Beans!!!

      (For the humor-impaired, yes I am aware the real reason they jump is because of the moth larva inside it, click it and learn something.

      --
      Buy Steampunk Clothing Online!
  3. Doping Probe by Anonymous Coward · · Score: 5, Funny

    Anybody check to see if there were banned substances in the ant?

    1. Re:Doping Probe by debilo · · Score: 3, Funny

      No, but he later suggested that the unusually high ratio of distance to time in his mandible sample could be explained by the beer and Jack Daniels shots he had the night before.

      That ant must be a Kennedy.

  4. Moo by Chacham · · Score: 4, Funny

    What i learned from the article.

    1) Black ants can jump.

    The researchers used a high-speed video camera filming at 50,000 frames per second to visualize the mandible movements.

    2) If i want a high-speed camera, become a researcher.

    The jumps were detailed at a relatively slower 3,000 frames per second.

    3) Jumping is slower than eating.

    The average duration of a strike was a mere 0.13 milliseconds, or 2,300 times faster than the blink of an eye.

    4) Blinking is slower than eating.

    Yet, the researchers note that even when an ant lands on its back or head, the insect is so light that it can still walk away no worse for wear.

    5) These ants are light headed.

    1. Re:Moo by noidentity · · Score: 2, Informative
      Yet, the researchers note that even when an ant lands on its back or head, the insect is so light that it can still walk away no worse for wear.

      Rather, the insect is so small that strong legs won't contribute much to its overall body mass; making the insect as large as a human would render all of the above impossible, and even if it did get in the air at the scaled height, it'd smash into a puddle of ant guts when it landed. Leg strengh = size squared; body mass = size cubed.

  5. Quick mouth? by nick13245 · · Score: 2, Funny

    This ant reminds me of some girls I know...

    1. Re:Quick mouth? by Bugs42 · · Score: 4, Funny

      What's this? A Slashdotter that knows girls? Sir, I accuse you of lying.

      --
      Programmer: an ingenious device that converts caffeine into code.
  6. Jaw-jumping by Anonymous Coward · · Score: 5, Funny

    So this is like rocket-jumping in Quake, right?

  7. Been watching Fox News channel again, I see? by krell · · Score: 5, Funny

    "welcome our insectoid jaw-flapping overlords"

    Don't tell me: Another Ann Coulter appearance on Hannity and Colmes last night?

    --
    Where were you when the voynix came?
    1. Re:Been watching Fox News channel again, I see? by bunions · · Score: 5, Funny

      > Don't tell me: Another Ann Coulter appearance on Hannity and Colmes last night?

      FLAWLESS VICTORY!!

      --
      there is no need to sign your posts. this isn't usenet. your username is right there above your post. stop it.
  8. White ants by hc5duke · · Score: 5, Funny
    1) Black ants can jump.

    Yes, but white ants have sound fundamentals, and they are deceptively fast. It has been reported that with advancements in genetic engineering, Chinese ants will soon be just as good.

  9. Re:Another fun fact about bugs...uncomfortable by fahrbot-bot · · Score: 3, Funny
    Pound for pound, fleas have the largest "members" in the animal kingdom.

    Anyone else uncomfortable with the phrases "pound for pound" and "largest member" being used in the same sentence?

    --
    It must have been something you assimilated. . . .
  10. Does this dethrone the shrimp? by shoolz · · Score: 2, Interesting

    It was reported in 2004 that Shrimp have the fastest 'kick'.

    1. Re:Does this dethrone the shrimp? by Martin+Blank · · Score: 4, Informative

      It does. Certain species of the mantis shrimp are able to strike at a speed of up to 23m/s, whereas the range listed here is 35m/s to 65m/s.

      The mantis shrimp is able to manage an acceleration of 10,500g and achieve a force of 1500N at impact. I wonder what the acceleration and force are for this ant. Any physics experts want to chime in?

      --
      You can never go home again... but I guess you can shop there.
    2. Re:Does this dethrone the shrimp? by ogewo · · Score: 2, Insightful

      Let's keep in mind that the mantis strike is done in water. Any way to estimate what the speed would be above water? I imagine it would be a closer race.

  11. Re:Another fun fact about bugs...uncomfortable by debilo · · Score: 2, Funny

    Anyone else uncomfortable with the phrases "pound for pound" and "largest member" being used in the same sentence?

    Not me. It's comments like those that made me get a Slashdot account.

  12. Ahh bith mahhh tonth by Zildy · · Score: 4, Funny

    Let's hope they can retract their tongue at record breaking speeds.

    --
    Karma: Excer..ex...excellahhh...realll good (mostly affected by drinking not done in moderation)
  13. For more cool insect stuff ... by OnTheWay · · Score: 3, Interesting

    Check out the BBC DVD series "Life in the Undergrowth", with the incomparable David Attenborough. The biggest problem with the series is that, at 5 episodes, it's far too short.

  14. Re:Ants and computers by Drooling+Iguana · · Score: 3, Funny

    Nuke the site from orbit. It's the only way to be sure.

    --
    ... I'm addicted to placebos
  15. Space-Time Dimensions by kike · · Score: 4, Funny

    "The trap-jaw ant has been clocked closing its mandibles at between 78 and 145 miles per hour"

    Shouldn't that be in bites per second?

    ----------
    Still here
    http://blogoscare.blogspot.com/

  16. Re:Another fun fact about bugs... by airuck · · Score: 4, Interesting
    Entomologist have a wealth of stories to tell. One of my favortites is traumatic insemination in bed bugs.

    The bed bug, Cimex lectularius, has a unique mode of copulation termed "traumatic" insemination [Carayon, J. (1966) in Monograph of the Cimicidae, ed. Usinger, R. (Entomol. Soc. Am., Philadelphia), pp. 81-167] during which the male pierces the female's abdominal wall with his external genitalia and inseminates into her body cavity [Carayon, J. (1966) in Monograph of the Cimicidae, ed. Usinger, R. (Entomol. Soc. Am., Philadelphia), pp. 81-167]. Under controlled natural conditions, traumatic insemination was frequent and temporally restricted. We show for the first time, to our knowledge, that traumatic insemination results in (i) last-male sperm precedence, (ii) suboptimal remating frequencies for the maintenance of female fertility, and (iii) reduced longevity and reproductive success in females. Experimental females did not receive indirect benefits from multiple mating. We conclude that traumatic insemination is probably a coercive male copulatory strategy that results in a sexual conflict of interests.
    --
    First entomology, then virology, and finally bioinformatics systems. Bugs follow me wherever I go.
  17. I guess a jellyfish sting doesn't count by demigod · · Score: 3, Interesting

    I guess a jellyfish stings doesn't count as a self-powered predatory strike then. Why?

    http://neurophilosophy.wordpress.com/2006/05/09/th e-sting-of-the-jellyfish-natures-fastest-cellular- mechanism/

    --
    "The last thing I want to do is deal with a bunch of people who want something."
    Major Major
  18. Ninja myths dispelled! by binarybum · · Score: 3, Funny

    After watching those videos, I have retracted my previously firm belief that ninjas are mammals. Arthropods can obviously be ninjas as well.

      In that first video that ant disappears from the site of the ant that is watching him, trims his toenails and files his tax return in mid air before landing directly behind his unsuspecting neighbor all in less than a second. Amazing.

    --
    ôó
  19. Fire Ants Are Here by Aqua_boy17 · · Score: 3, Interesting

    They're still here. I live in South Florida and they have spread over the years throughout the entire state. Occaisionally, you will hear about livestock or sometimes even a person in a nursing home or otherwise debilitated being bitten to death by them. Some people have also developed severe allergies to them and a single bite can be fatal for these people if they don't have epiniphrine nearby. Those who can tolerate bites wind up with welts that become pustules and last for days.

    The fire ants are very hard to eradicate as once you get rid of them from your yard, they just eventually creep back over from a neighbor's yard. Flooding rains don't help as the ants can simply just raft themselves over the water until it recedes. This is also another way that they spread.

    The bait type treatments (Amdro TM, etc.) are somewhat effective, but they're expensive and they don't permanently rid you of these pests. We used to just burn the mounds with gasoline when we were kids, but it's not effective at getting the whole mound and it's ecologically irresponsible as the gas that doesn't burn winds up in the aquafer(sp?).

    I did recently see a program where fire ant mounds were being treated in rural areas with a mite that specializes in laying its eggs in the fire ants' skulls. The mite larvae hatch out and then spread to the rest of the mound to lather, rinse, repeat. It looks like this may be an effective natural way of keeping fire ants in check, if they can't be completely eliminated. I think someone at the University of Florida came up with this and if it works, they should be in line for some kind of prize for the research.

    --
    What if the Hokey Pokey really is what it's all about?
    1. Re:Fire Ants Are Here by rts008 · · Score: 2, Informative

      Ahhh! We don't learn, do we?
      "And then the gorilla's will freeze to death in the winter." (Simpson's show paraphrase- too lazy to look up the exact dialog for more accurate quote.)

      This has not worked too well in the past from my experience/knowledge, as I recall Pennsylvania releasing some type of fly that was a natural foe of the gypsy moths that were denuding PA of it's forests. The flies turned out to be very aggressive against not only the gypsy moths, but also seemed to LOVE mammals also- worst fly bites I ever recieved, and the only time I've been thrown from a horse due to the horse being bitten by an insect. Impressive bucking bronco acts occured from normally mild-mannered equines after the fly's release!

      (not much info, but here is a quick Google search- see Biological Controls)
      (http://www.ento.psu.edu/extension/factsheets/gyps ymoth.htm)

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
  20. What are the odds? by djupedal · · Score: 2, Funny

    "...fastest self-powered predatory strike..."

    So, you've met my x-wife and lived to tell about it, eh?

  21. Colmes by krell · · Score: 2, Funny

    Come to think of it, Alan Colmes really DOES look like a giant bug.

    --
    Where were you when the voynix came?
  22. What, no lasers? by tfurrows · · Score: 2, Funny
    C'mon folks, how can we welcome our new overlords if they don't have lasers or rockets strapped to their bodies? Are they heat-seaking? Where's the pizazz?

    Here's what I think we should do:

    1. Find the worlds fastest predatory strike
    2. Strap a rocket and laser to the animal/bug/lawyer/software_company which posesses it
    3. ???
    4. Profit!!!




    (that was my first, 1-2-3 profit post... I feel a part of the community now)
  23. Wrong, Wrong, Wrong. by Anonymous Coward · · Score: 3, Interesting

    Cnidarians (i.e. Jellyfish & Sea Anemones) have stinging cells which are much faster. These cells, called nematocysts, are the fastest things in the animal kingdom. The stingers launch out at speeds well in excess of 300 miles per hour.

  24. About these ants by G4from128k · · Score: 5, Informative

    Trap jaw ants do live in the wild in the southern U.S -- I've studied them in Austin Texas. They're not easy to find as the colonies are very small and the individuals tend to be quite reclusive. They are largish ants (about about 1 cm in length), dark in color, and tend to be fairly slow moving when foraging in leaf litter and under rocks. They walk around with their jaws cocked open and one or two pairs of trigger hairs in the mouth fire the jaw. As the article states a snap of the jaw impales the prey and then the ant stings it. If they fire the jaw on a solid object, the ant goes flying. Either way the jaw emits a loud 'snap' when triggered. Despite the sharp hair-trigger jaw and sting, these ants tend to fall into the "fierce in their nest, but timid in the wild" range of ant behavior.

    As amazing as the trap jaw design is, these ants are not unique. The trap jaw concept evolved at least twice in ants. Two collections of ant species on widely separated arms of the ant family tree use a trap jaw mechanism for capturing prey. They share the same jaw design, but have very different head shapes. Ants of genus Odontomachus (the ones in the video) have an odd-shaped lumpy cylindrical head. Those on the other side of the ant family tree (genus Daceton and Strumigenys) have a distinct heart-shaped head. Species of both types occur in the U.S. The Strumigenys that I've seen in the U.S. are very small (about 2 mm) and thrive on similarly tiny creatures found in rotting logs, leaf litter, etc.

    --
    Two wrongs don't make a right, but three lefts do.
  25. This just in... by argStyopa · · Score: 4, Funny

    ...these scientists have never seen my g/f's response when she sees my paycheck in my hand.

    "fastest self-powered predatory strike in the animal kingdom" my ass.

    --
    -Styopa
  26. It is Mostly Old Information by paladinwannabe2 · · Score: 2, Informative

    "Journey to the Ants" covers much of this information, including that Odontomachus species have the fastest neural reflex arc known- the time between when their mouth hairs touch something and they start biting it is something like .13 milliseconds. Moral of the story- don't stick your finger in their mouth, you will get bitten.

    --
    You are reading a copy of my copyrighted post.
  27. Taking the bait by StikyPad · · Score: 3, Funny

    According to TFA, they calculated the speed by using a high speed camera, and calculated that the ant closed its jaws on the bait in 130 microseconds. The record for opening a jaw though, at 110 microseconds after seeing the "bait," is still held by Paris Hilton.

  28. KBPS by kn0tw0rk · · Score: 2, Funny

    Only if they can then open their mouth as fast.
    Then you could have a killa-bites-per-second.

    --
    See my art -> http://herbevore.deviantart.com