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Parasitic Hairworm Charms Grasshopper Into Taking It for a Swim
NY Times ^ | September 6, 2005 | NICHOLAS WADE

Posted on 09/06/2005 2:59:45 AM PDT by Pharmboy


VB Films/CNRS Images Media
A grasshopper was tricked into jumping into water by a hairworm that had infected it and had eaten most of its
insides. In the water, the worm left the insect to start the next portion of its life. The grasshopper drowned.

Only in science fiction do people's minds get possessed by alien beings. For grasshoppers, zombification is an everyday hazard, and it obliges them to end their lives in a bizarre manner.

Biologists have discovered and hope to decipher a deadly cross talk between the genomes of a grasshopper and a parasitic worm that infects it.

The interaction occurs as the worm induces the grasshopper to seek out a large body of water and then leap into it.

The parasite, known as a hairworm, lives and breeds in fresh water. But it spends the early part of its life cycle eating away the innards of the grasshoppers and crickets it infects.

When it is fully grown, it faces a difficult problem, that of returning to water. So it has evolved a clever way of influencing its host to deliver just one further service - the stricken grasshopper looks for water and dives in.

The suicidal behavior of the infected grasshoppers has been studied by a team of biologists from the French National Center for Scientific Research in Montpellier, France, led by Frédéric Thomas and David Biron.

They did their fieldwork around a swimming pool on the border of a forest near Avène les Bains in southern France. Hordes of infected grasshoppers - more than 100 a night - arrive at the pool during summer nights at the behest of the parasites.

The biologists captured grasshoppers before their suicidal plunge and removed the worms.

(Excerpt) Read more at nytimes.com ...


TOPICS: Culture/Society; Foreign Affairs; News/Current Events
KEYWORDS: bizarre; france; insects; parasitism
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This is pretty amazing. Zombie grasshoppers...
1 posted on 09/06/2005 2:59:45 AM PDT by Pharmboy
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To: PatrickHenry; aculeus; thefactor; blam; cyborg

File this one under "truth is stranger than fiction."


2 posted on 09/06/2005 3:01:49 AM PDT by Pharmboy (There is no positive correlation between the ability to write, act, sing or dance and being right)
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To: Pharmboy

Think of all those poor hairworms who thirsted to death before one of them thought up this trick.


3 posted on 09/06/2005 3:02:12 AM PDT by The Red Zone (Florida, the sun-shame state, and Illinois the chicken injun.)
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KHAAAAAN!!!!!

4 posted on 09/06/2005 3:03:29 AM PDT by KneelBeforeZod ( I'm going to open Cobra Kai dojos all over this valley!)
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To: Pharmboy

Night of the Living Grasshoppers...


5 posted on 09/06/2005 3:05:55 AM PDT by WestVirginiaRebel (The Democratic Party-Jackass symbol, jackass leaders, jackass supporters.)
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To: Pharmboy
The Goa'uld have enslaved the Tari in such a manner for centuries.
6 posted on 09/06/2005 3:11:52 AM PDT by Rebelbase ("Run Hillary Run" bumper stickers. Liberals place on rear bumper, conservatives put on front bumper)
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To: Pharmboy

I've often wondered how some otherwise intelligent people could vote for a democrat. They must have some sort of a 'wild hair' worm some where that makes them seek out a polling place.


7 posted on 09/06/2005 3:45:14 AM PDT by Jaxter ("Vivit Post Funera Virtus")
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To: Pharmboy

"Hordes of infected grasshoppers - more than 100 a night..."

So is it 100 hordes or 100 grasshoppers? Is 100 grasshoppers a "horde"?

Whatever. It certainly gives a new meaning to the phrase "have a wild hair up your..."


8 posted on 09/06/2005 4:03:45 AM PDT by Adder (Can we bring back stoning again? Please?)
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To: Pharmboy

Why does this story remind me of my ex-wife


9 posted on 09/06/2005 4:08:52 AM PDT by grjr21
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To: Pharmboy

That is not unusual. Women do that to men all the time.


10 posted on 09/06/2005 4:11:31 AM PDT by Mind-numbed Robot
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To: Jaxter
Its' called Liberalism..Its a cancerous Condition, spreads mainly in schools...the prime vector is the N.E.A...the most virulent form afflicted the stupid (and rich).
11 posted on 09/06/2005 4:11:59 AM PDT by skinkinthegrass (Just because you're paranoid, doesn't mean they aren't out to get you :^)
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To: Pharmboy

Even the NYT is worth reading - if they would just stick with facts and science.


12 posted on 09/06/2005 4:18:12 AM PDT by manwiththehands (If the Left offends you, stick around. They are just getting started.)
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To: Pharmboy

Wow that's amazing.


13 posted on 09/06/2005 5:01:04 AM PDT by cyborg (I'm having the best day ever.)
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To: Pharmboy
charm is deceptive, beauty is vain....
14 posted on 09/06/2005 5:01:20 AM PDT by the invisib1e hand (we don't need no stinkin' tagline.)
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To: Pharmboy

Them Intelligent Designers have a sense of humor.


15 posted on 09/06/2005 6:34:19 AM PDT by aculeus (Ceci n'est pas une tag line.)
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To: Pharmboy

It's probably worth noting that the rabies virus does much the same thing to its host. It also manipulates the host's behavior - an infected animal flies into a rage and attempts to bite virtually any other animal it encounters, which works out nicely for the rabies virus, insofar as it's spread through saliva. There is also, IIRC, a species of fluke that manipulates the behavior of the ticks it infects.


16 posted on 09/06/2005 6:41:44 AM PDT by general_re ("Frantic orthodoxy is never rooted in faith, but in doubt." - Reinhold Niebuhr)
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To: Pharmboy

Much like the MSM who eat their readers minds and then get them to buy the stuff they advertise.


17 posted on 09/06/2005 6:54:32 AM PDT by Panzerlied ("We shall never surrender!")
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To: PatrickHenry

A "Zombie Bug" ping.


18 posted on 09/06/2005 7:34:30 AM PDT by Junior (Just because the voices in your head tell you to do things doesn't mean you have to listen to them)
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To: Pharmboy
The biologists captured grasshoppers before their suicidal plunge and removed the worms.

Saving the world one grasshopper at the time :)

19 posted on 09/06/2005 7:37:41 AM PDT by Quinotto (On matters of style swim with the current,on matters of principle stand like a rock-Thomas Jefferson)
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To: Junior

Interesting, but not worth a ping to the list. We have a couple of active ID threads going already.


20 posted on 09/06/2005 7:37:49 AM PDT by PatrickHenry (Discoveries attributable to the scientific method -- 100%; to creation science -- zero.)
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