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Huge Jurassic Fleas May Have Fed On Dinosaurs

ananyo writes "Primitive fleas were built to sup on dinosaur blood in the Jurassic period, more than 150 million years ago. The potential host–parasite relationship has been uncovered thanks to a set of beautifully preserved fossils found in China. Today, the varied group of parasitic insects known as fleas frequently infests mammals and birds. But little is known about their origins. Researchers have now extended the history of the parasites by at least 60 million years. Whereas modern fleas range from 1 to 10 millimeters in length, the Jurassic and Cretaceous species were between 8 and 21 millimeters. The Jurassic and Cretaceous fleas also lacked the spring-legged, jumping specializations of modern species, and their siphoning mouthparts were armored structures studded with saw-like projections, unlike the smooth jaws of modern fleas."

85 comments

  1. Is there anything from that era that wasn't super sized? Are the Q slowly changing the gravitational constant of the universe over time? TELL ME!

    1. Re:Big by oodaloop · · Score: 5, Funny

      I think I read bacteria were the size of pancakes. And pancakes were the size of the manhole covers. Libraries of Congress were smaller then though.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    2. Re:Big by Yvan256 · · Score: 3, Funny

      Is there anything from that era that wasn't super sized?

      Fast food meals?

      Are the Q slowly changing the gravitational constant of the universe over time?

      Oh look, the monkey is capable of primitive thinking!

    3. Re:Big by WTFmonkey · · Score: 3, Insightful

      More O2 and CO2, at double the atmospheric pressure of today, so higher partial pressures of oxygen and fewer problems getting oxygen to the extremities. I think.

    4. Re:Big by vlm · · Score: 1

      Oh now wait a second that is not going to help with square/cube law bone strength side effects, unless you're messing around with the gravitational constant.

      Knowing how rough farm livestock has it, I've always wondered how dinosaurs survived... like tip one over and its dead, all bones smashed. The TV imaginative animations that show dinos fighting like wolves might not be terribly realistic if simply tipping over means all ribs smashed.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    5. Re:Big by captinkid · · Score: 1

      Only mind blowing if your mind is missing.

      The expanding earth is a joke, and a very sad one at that.

      Rebuttal to the expanding earth theory

    6. Re:Big by NicknameAvailable · · Score: 1

      Its proof the 2nd law of thermodynamics is wrong: entropy is neither created nor destroyed! As we get smarter we must too get smaller.

    7. Re:Big by Hognoxious · · Score: 1

      Oh now wait a second that is not going to help with square/cube law bone strength side effects, unless you're messing around with the gravitational constant.

      Fleas are insects (I think. They're creepy crawly critters of one kind or another), so they don't have bones.

      One may make a reasonable assumption that it works the same way for a chitinous exoskeleton. But given that large insects are fairly common in the fossil record, it would seem that something other than mechanical factors is stunting current arthropods. Thankfully.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    8. Re:Big by avgjoe62 · · Score: 4, Insightful

      Yes, but the size of a VW Bug has always been a constant, thus explaining its popularity as a unit of comparative measurement.

      --

      How come Slashdot never gets Slashdotted?

    9. Re:Big by Anonymous Coward · · Score: 1

      Stunted? Who's stunted?

      http://www.npr.org/blogs/krulwich/2012/02/24/147367644/six-legged-giant-finds-secret-hideaway-hides-for-80-years?ps=cprs

    10. Re:Big by EdIII · · Score: 1

      Fast food meals?

      Some of those bastards were pretty fast... and just about everything was food.

      Oh look, the monkey is capable of primitive thinking!

      LOL. Being in the IT department we actually have a poster with that title :)

    11. Re:Big by geekoid · · Score: 1

      That is a gross misunderstanding of the square cube law and it's application to these large species.

      Seriously dude, did you take ANY science after 8th grade? or are you from Kansas?

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    12. Re:Big by haruchai · · Score: 1

      It's a shame that comic book artist legend Neal Adams has bought into this bullshit.

      --
      Pain is merely failure leaving the body
    13. Re:Big by Physician · · Score: 1

      There were giants in the earth in those days [antediluvian]; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown. Genesis 6:4

      --
      Does God treat us as servants or friends? Check my homepage.
    14. Re:Big by shadowrat · · Score: 1

      You might not have noticed, but all the big dinosaurs are long dead. It's probably because they didn't work that well. Only the little ones, like chickens, survived.

    15. Re:Big by Michael+Woodhams · · Score: 1

      Single celled - check.
      Size of a pancake - check.
      Bacteria - no.
      Two out of three isn't bad.

      The library of congress can now fit onto 4 hard drives with room to spare. Assuming that number is uncompressed, one should do.

      You can do your own web search for giant pancakes, it lacks sufficient challenge to be interesting.

      --
      Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
    16. Re:Big by viperidaenz · · Score: 1

      Dinosaurs are more like birds than mammals and have different bone structures. Tip over an ostridge and see if all its bones break.

    17. Re:Big by Anonymous Coward · · Score: 0

      lemme go find some austridges then

    18. Re:Big by St.Creed · · Score: 4, Interesting

      Actually, they worked amazingly well. Humans or even primates have yet to come close to the length of time they dominated the planet. Only when circumstances changed drastically, they were unable to survive.

      Humanity is ever trying to close the gap with the dinosaurs in that area but failing so far. However, the current experiment in geo-engineering are going to be quite helpful towards the goal of catching up with the dinosaurs.

      --
      Therefore, by the (faulty) logic you're using, you're just a cow with a keyboard - osu-neko (2604)
    19. Re:Big by crispylinetta · · Score: 1

      How come Slashdot never gets Slashdotted?

      If I had mod points, I would rate your sig Insightful. So every time you post anything, Boom - Insightful. :)

    20. Re:Big by ConceptJunkie · · Score: 1

      That's why they have a platinum-iridium VW Bug locked in a vault filled with helium in Paris.

      --
      You are in a maze of twisty little passages, all alike.
    21. Re:Big by ConceptJunkie · · Score: 1

      They probably won't. But I've never seen a 20-foot tall ostrich.

      --
      You are in a maze of twisty little passages, all alike.
  2. Dino by SJHillman · · Score: 4, Funny

    I bet Fred Flintstone spent a fortune on Dino Advantix II

    1. Re:Dino by Anonymous Coward · · Score: 0

      Imagine how BIG Fred must have been. No wonder Wilma walked funny. Oh, wait, they all walked funny.

    2. Re:Dino by SleazyRidr · · Score: 1

      Dud got around.

  3. Let me be the first to suggest... by eternaldoctorwho · · Score: 0

    ...finding some of those fleas trapped in amber, harvest the dino DNA therein, clone a zoo of dinos, and start an amusement park off the coast of Costa Rica. What could possibly go wrong?

    1. Re:Let me be the first to suggest... by Yvan256 · · Score: 1

      And if something goes wrong, just hop in your phone box and go back to fix what went wrong!

    2. Re:Let me be the first to suggest... by Endo13 · · Score: 2

      Sounds most excellent!

      --
      There is no -1 Disagree mod. Slashdot.org/faq defines mod options. USE IT.
    3. Re:Let me be the first to suggest... by Yvan256 · · Score: 3, Funny

      Not that phone box. The other one.

    4. Re:Let me be the first to suggest... by oodaloop · · Score: 2

      Bogus!

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    5. Re:Let me be the first to suggest... by ConceptJunkie · · Score: 1

      Or just get Jeff Goldblum to fix it all by making a computer virus using his Mac.

      --
      You are in a maze of twisty little passages, all alike.
  4. Amazing! by Anonymous Coward · · Score: 0

    But I'm more amazed at the fact that there's a freakin' picture with the article.

  5. Huge? by vlm · · Score: 4, Insightful

    Written as "huge" I was expecting 8 to 21 cm not 8 to 21 mm. Sooo unimpressed.

    I'm told you guys in Florida have cockroaches the size of dachshunds, that kind of scale is what I was expecting.

    --
    "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    1. Re:Huge? by oodaloop · · Score: 1

      I guess you're pretty ticked off then.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    2. Re:Huge? by djdanlib · · Score: 2

      If you've ever had an animal get fleas, you'll cringe at the thought of a 2.1cm long flea!

    3. Re:Huge? by charlesj68 · · Score: 2

      Reviewing your spam folder has corrupted your expectations.

    4. Re:Huge? by Anonymous Coward · · Score: 0

      Mine is about 22 cm. I bet that impresses you.

    5. Re:Huge? by Brett+Buck · · Score: 1

      I'm told you guys in Florida have cockroaches the size of dachshunds,

          That's OK, we got dachsunds the size of Buicks.

    6. Re:Huge? by Sooner+Boomer · · Score: 1

      I'm told you guys in Florida have cockroaches the size of dachshunds,

      That's OK, we got dachsunds the size of Buicks.

      and Buicks the size of ......hell, I got nuthin'...

      --
      Chaos maximizes locally around me.
    7. Re:Huge? by Hognoxious · · Score: 0

      In Soviet Russia, fleas that big have ANIMALS!!!!!

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    8. Re:Huge? by evil_aaronm · · Score: 2

      On the other hand, they'd be much easier to pick out of fur, or step on if they're in the carpet.

    9. Re:Huge? by PatPending · · Score: 1

      Yeah, it bites!

      --
      What one fool can do, another can. (Ancient Simian Proverb)
    10. Re:Huge? by geekoid · · Score: 1

      and Buicks the size of your mom.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    11. Re:Huge? by Anonymous Coward · · Score: 0

      I'm itching to learn more about this.

    12. Re:Huge? by Anonymous Coward · · Score: 0

      Exactly right. We use them in place of skateboards.

    13. Re:Huge? by Anonymous Coward · · Score: 0

      dude, 21mm is bigger than ants. how big does that make contemporary ants?

    14. Re:Huge? by Anonymous Coward · · Score: 0

      That's a huuuuge buick.

    15. Re:Huge? by Anonymous Coward · · Score: 0

      I count the seconds.

    16. Re:Huge? by St.Creed · · Score: 1

      If you've ever come back from vacation and got jumped by a few million fleas, desperate for some blood, you'll cringe even more.

      Oh cool, I think I just may have found the scenario for "Jurassic Park IV" :)

      --
      Therefore, by the (faulty) logic you're using, you're just a cow with a keyboard - osu-neko (2604)
    17. Re:Huge? by Truedat · · Score: 2

      And the movie would be lame too: "Run for your lives these fleas are slightly bigger!"

    18. Re:Huge? by Anonymous Coward · · Score: 0

      Dude, if I ever saw a 2 fucking cm, blood-sucking parasite crawling on my skin, I'd be worried.
      Whoever the douche was that tagged the story !huge needs to get some perspective.

  6. why dinosaurs (and their fleas) were huge by Anonymous Coward · · Score: 0

    Smaller is more competitive; everything shrunk as resources dwindled. In the future, we'll all be 3' high...

    1. Re:why dinosaurs (and their fleas) were huge by Anonymous Coward · · Score: 0

      nice troll, its well known average height has been increasing for decades and their used to be pigmy humans.

    2. Re:why dinosaurs (and their fleas) were huge by oodaloop · · Score: 1

      There still are pigmy humans.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    3. Re:why dinosaurs (and their fleas) were huge by ConceptJunkie · · Score: 1

      Yeah, but resources aren't dwindling.

      --
      You are in a maze of twisty little passages, all alike.
  7. NY Bedbugs by DigiShaman · · Score: 1, Funny

    You think that's bad. You haven't seen NY Bedbugs. Sure, they look like a normal bedbug. But these guys really take in blood. When finished, they waddle off the size of a basketball and still manage to ninja themselves out of site. You know you've been bitten when you feel light headed. But you know what the worst part of it is? You don't get paid for that "blood donation" and they always come back for more.

    --
    Life is not for the lazy.
    1. Re:NY Bedbugs by Samantha+Wright · · Score: 1

      FIRST YORKSHIREMAN: And you try and tell the young people of today that ..... they won't believe you.
      ALL: They won't!

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  8. Read it in the Post by Quiet_Desperation · · Score: 1

    I heard one got hired and worked for the Port Authority for a week before someone noticed.

    1. Re:Read it in the Post by Anonymous Coward · · Score: 1

      A lawyer without work?

  9. *Jurassic Park theme* by Anonymous Coward · · Score: 0

    Were any of these fleas preserved in amber?

  10. Were these hosts to parasitic modern-sized fleas? by Anonymous Coward · · Score: 1

    Big fleas have little fleas
    upon their backs to bite 'em;
    and little fleas have lesser fleas,
    and so, ad infinitum.

  11. Re:Bacteria Schmacteria by tripleevenfall · · Score: 2

    In Jurassic Pangaea, pancakes eat you!

  12. Reminds me of an SF short story from decades ago by bfwebster · · Score: 1

    Can't remember the name of the story, but (much like Bradbury's "A Sound of Thunder", though in a humorous vein) it involved a time traveler going back to hunt T-Rexes. He shoots and kills one, then strides towards the T-Rex to take a trophy...only to be met by a multitude of large external parasites abandoning the T-Rex and looking for a new host. Doesn't end well for the hunter. Anyone remember the name of this story?

    And, yeah, 21 mm may not sound like much, but think of dealing with a horde of inch-long fleas, and that may bring a different image to mind. ..bruce..

    --
    Bruce F. Webster (brucefwebster.com)
  13. Re:Reminds me of an SF short story from decades ag by Anonymous Coward · · Score: 2, Informative

    You're thinking of "Poor Little Warrior" by Brian Aldiss. One of my favorites.

    But it wasn't humorous at all. The protagonist is in a severe depression, not sure he wants to live, and tries this time safari to snap out of it.

    After he shoots the brontosaur, its parasites swarm him, snipping off his fingers, shredding his chest, etc. It takes a minute or two for him to die. Very nasty. Not really funny. But a good story.

  14. Who wrote this paper? by Anonymous Coward · · Score: 0

    The paper's authors are listed as Huang, then Engel, and others. Keeping in mind that the specimens were found in China. Yet this story somehow describes the authorship as "Engel and others". Huh.

  15. Re:Reminds me of an SF short story from decades ag by Hentes · · Score: 0

    Brian Aldiss I believe.

  16. Re:Reminds me of an SF short story from decades ag by Hognoxious · · Score: 2

    Those are shit parasites. The first rule of being a parasite is you don't kill your host. The second rule is that you can break the first rule, but only if you've got another host lined up.

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  17. I call it... by Anonymous Coward · · Score: 0

    The Ex-Wife.

  18. Well I for one ... by ClickOnThis · · Score: 1

    ... am glad I haven't seen any obligatory "overlords" posts for this story.

    Oh, wait.

    --
    If it weren't for deadlines, nothing would be late.
  19. I have a great idea by skovnymfe · · Score: 1

    Let's take some dinosaur blood from the fossil and merge its DNA with African frog DNA and we'll make the greatest petting zoo in the world!

    1. Re:I have a great idea by geekoid · · Score: 1

      And it would be.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  20. Their descendents by SwampChicken · · Score: 2

    are alive and well and now feed off our stock markets and banking sector.

  21. And, if you're wondering ... by Anonymous Coward · · Score: 0

    ... what happened to these massive parasites, apparently they evolved into Chris Dodd.

  22. Re:Reminds me of an SF short story from decades ag by Chris+Burke · · Score: 2

    Hey, they had a host lined up, but their assumption that whatever killed the Tyrannosaur would be big enough for them was off. Give them a break, they're bugs!

    --

    The enemies of Democracy are
  23. I expect to see these... by roc97007 · · Score: 1

    ...in the next season of Terra Nova. If there is one.

    --
    Oliver's law of assumed responsibility: If you're seen fixing it, you will be blamed for breaking it.
  24. Re:Reminds me of an SF short story from decades ag by Anonymous Coward · · Score: 0

    Can't remember the name of the story, but (much like Bradbury's "A Sound of Thunder", though in a humorous vein) it involved a time traveler going back to hunt T-Rexes. He shoots and kills one, then strides towards the T-Rex to take a trophy...only to be met by a multitude of large external parasites abandoning the T-Rex and looking for a new host. Doesn't end well for the hunter. Anyone remember the name of this story?

    And, yeah, 21 mm may not sound like much, but think of dealing with a horde of inch-long fleas, and that may bring a different image to mind. ..bruce..

    I think it's "Poor Little Warrior!" by Brian Aldiss. It was the first thing I thought of, too.

    -Gareth

  25. Modern-day fleas up to 1cm in length? by harryjohnston · · Score: 3, Informative

    "Whereas modern fleas range from 1 to 10 millimeters in length ..."

    Whoa, 1cm sounds pretty darned big for a flea. That's about the same size as a typical bee. Wikipedia says fleas reach up to 3.3mm which seems more reasonable to me.

    Anybody know of a modern-day flea species that actually reaches 10mm? (What do they live on, elephants?)

    1. Re:Modern-day fleas up to 1cm in length? by Truedat · · Score: 1

      Whoa, 1cm sounds pretty darned big for a flea. That's about the same size as a typical bee.

      That can't be right [places thumb and forefinger about a cm apart], let me check that. Ok so I couldn't persuade a bee to let me measure him but I did find a link that says they are double that at about 2cm: http://nature.berkeley.edu/urbanbeegardens/research_regional.html

      Jees, I can't believe I looked that fact up, pathetic!! :-)

    2. Re:Modern-day fleas up to 1cm in length? by harryjohnston · · Score: 1

      Yeah, you're probably right. Let me rephrase: that's about the size of a typical housefly. I still think it's kinda on the large size for a flea.

  26. 1 to 10 mm???? by Anonymous Coward · · Score: 0

    I think somebody dropped a decimal point somewhere.
    10 mm = 1 cm = . 4 inches ! ! ? ?
    So 1 to 10 mm would be a range of .04 to .4 inches.
    Where can you find a flea that is almost half an inch?
    According to the wiki site, "Fleas are 1.5 to 3.3 mm long/"
    Link here

  27. Re:Reminds me of an SF short story from decades ag by bfwebster · · Score: 1

    Thanks -- you're right. It's "Poor Little Warrior" (1958) by Brian Aldiss. I suspect it was a tongue-in-cheek response to Bradbury's "A Sound of Thunder" (1952).

    --
    Bruce F. Webster (brucefwebster.com)