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Wingless Gliders May Reveal the Origins of Insect Flight
The New York Times ^ | April 4, 2006 | ELIZABETH SVOBODA

Posted on 04/04/2006 11:59:23 AM PDT by Sopater

When Stephen Yanoviak visited the jungles of Panama in 1998 to study how ants forage, he found himself with some unexpected downtime. "Out of boredom, I started flicking some ants off of a tree," he said.

And he saw something extraordinary. Some of the ants fell straight, but others swerved at near-right angles and landed on tree trunks feet from the ground.

Dr. Yanoviak, a University of Florida entomologist, forgot about the bizarre insect gliders until several years later, when he was assaulted by the same ant species, Cephalotes atratus, during a mosquito-collecting trip to the Peruvian rainforest.

"I was sitting on a branch and they were crawling all over me, so I tried to push them off," he said. "They fell, but immediately turned around and glided right back to the tree trunk. That's when I realized this was something worth investigating."

After returning from his trip, Dr. Yanoviak mentioned the gliding ant sighting to his colleague Robert Dudley, an animal flight expert at the University of California, Berkeley. "I thought it was the most exciting thing I'd ever heard," Dr. Dudley said, and he decided to join Dr. Yanoviak in exploring this uncharted biological territory. Since then, their research has shed light on the airborne survival strategies many wingless insect species have, and on the question of how insect flight originated.

With the entomologist Michael Kaspari of the University of Oklahoma, the two took video of the ants' descents, looking for clues about how their structure and movements enabled complex aerial maneuvers.

The ants' hang time was impressive not because their bodies were particularly aerodynamic, but because they knew how to move their long limbs around to reduce drag. They moved their left hind legs outward and rotated them, an off-kilter motion that allowed them to maintain altitude.

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


TOPICS: Miscellaneous
KEYWORDS: creation; crevolist; evolution; science
Dr. Dudley and Yanoviak are most enthusiastic about tracking down the missing evolutionary link between flightless and flying insects.

Ants previously had wings and lost them, making them less than ideal to demonstrate this link...

"This could be how the first flight began—insects just jumped off branches and started gliding,"


I sure don't see how this has anything to do with the origin of insect flight assuming that they are alluding to the development of insect wings.

PETA ALERT!!! (People for the Ethical Treatment of Ants)

"Out of boredom, I started flicking some ants off of a tree,"

they started chopping off appendages to see if the insects could still soar

1 posted on 04/04/2006 11:59:25 AM PDT by Sopater
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To: Sopater

it's THEM

Can pigs us the same technique to fly?
Only one way to find out.
Pig tossing contest tonight at the big tree.


2 posted on 04/04/2006 12:02:48 PM PDT by Waverunner
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To: Waverunner
Pig tossing contest tonight at the big tree.

Ham bam thank you, ma'am.

3 posted on 04/04/2006 12:05:36 PM PDT by Jeff Chandler (Peace Begins in the Womb)
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To: Sopater

There is a fallacy in the theory. The phenomenon is the thought that aerodynamics is involved. It is not.

The swerving to the tree trunk is purely mental. The ants will themselves toward the tree.

remember the rubber tree plant.


4 posted on 04/04/2006 12:06:50 PM PDT by bert (K.E. N.P. Slay Pinch)
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To: bert

Use the Force, Fluke!


5 posted on 04/04/2006 12:12:54 PM PDT by bondjamesbond (RICE 2008)
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To: bert
Look for the thrilling Wire-Fu sequel, Crouching Tiger, Hidden Ant Farm...
6 posted on 04/04/2006 12:14:05 PM PDT by bondjamesbond (RICE 2008)
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To: Jeff Chandler

Your movies are great -
I have "Away All Boats" as part of my 16mm film collection
I also have "THEM"

nothing like an outdoor movie party, except maybe a pig toss.
Where we experiment to learn the laws of hamodynamics.
After all evolution means that a more evolved being should survive better. and while a pig has no more letters than an ant, it hasn't prevented them from becoming politicians.


7 posted on 04/04/2006 12:14:51 PM PDT by Waverunner
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To: Sopater

"I thought it was the most exciting thing I'd ever heard," Dr. Dudley said"

And I thought I had a boring life!


8 posted on 04/04/2006 12:15:13 PM PDT by mlc9852
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To: Sopater
Wingless Gliders May Reveal the Origins of Insect Flight

If wingless gliders can fly, why would they need wings? This stuff passes for science?

9 posted on 04/04/2006 12:16:59 PM PDT by My2Cents
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To: My2Cents

Perhaps a dictionary would help you distinguish gliding from flying.


10 posted on 04/04/2006 12:18:10 PM PDT by js1138 (~()):~)>)
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To: Waverunner

11 posted on 04/04/2006 12:19:30 PM PDT by null and void (We are what we repeatedly do. Excellence, therefore, is not an act but a habit. - Aristotle)
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To: Sopater
One problem with this theory. Ants have wings during mating season. Therefore I would expect them to instintively know how to twist and turn in the air - even the wingless worker ants.
12 posted on 04/04/2006 12:20:41 PM PDT by KarlInOhio (If you have a leaking pipe, you shut off the water valve before deciding on amnesty for the puddles.)
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To: Sopater

Entomologists are a peculiar bunch. Another entomologist once did an experiment on cockroaches, aimed at determining whether they were capable of actual "learning". Put them on a special strip which could deliver an electric shock to their front legs only. Did a few rounds of sending a warning vibration followed quickly by a shock. The shocks caused the roaches to raise their front legs off the strip. Soon the the roaches "learned" to raise their front legs when they felt the vibration, and avoid the shock. Then the entomologist had an idea: decapitate them and see if they still do this. Yup, the row of headless roaches heeded the warning vibrations and raised their front legs. I worry a little about people who understand the minds of cockroaches this well.


13 posted on 04/04/2006 12:25:35 PM PDT by GovernmentShrinker
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To: null and void

THEM: Greatest giant irradiated mutant insect film ever made. Seriously.


14 posted on 04/04/2006 12:27:32 PM PDT by Rembrandt_fan
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To: Sopater

"As God is my witness, I thought turkeys could fly."

}:-)4


15 posted on 04/04/2006 12:33:20 PM PDT by Moose4 ("I will shoulder my musket and brandish my sword/In defense of this land and the word of the Lord")
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To: Rembrandt_fan

Agreed.


16 posted on 04/04/2006 12:36:04 PM PDT by null and void (We are what we repeatedly do. Excellence, therefore, is not an act but a habit. - Aristotle)
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To: Rembrandt_fan

Saw it in a theater when I was eight years old. Except for the parts I saw from the lobby.


17 posted on 04/04/2006 12:38:01 PM PDT by js1138 (~()):~)>)
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To: null and void

Them is a classic movie, and the only commercial film ever to depict the XB-35 "Flying Wing" US bomber. It was used in that film towards the end, and is the reason I own a copy.


18 posted on 04/04/2006 12:38:09 PM PDT by MineralMan (godless atheist)
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To: Moose4

Classic...
19 posted on 04/04/2006 12:39:12 PM PDT by Sopater (Creatio Ex Nihilo)
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To: MineralMan

Ummmm, wasn't that the 1953 version of War of the Worlds?


20 posted on 04/04/2006 12:43:31 PM PDT by null and void (We are what we repeatedly do. Excellence, therefore, is not an act but a habit. - Aristotle)
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To: Sopater

"When the researchers covered the insects' eyes with dots of white nail polish, however, they sank to the forest floor like stones."

Ouch!!


21 posted on 04/04/2006 12:46:10 PM PDT by oldcomputerguy
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To: null and void

"Ummmm, wasn't that the 1953 version of War of the Worlds?"

Nope. At the end of "Them," when they're bombing the dam, that's the plane in the flyby shot. Check it out.


22 posted on 04/04/2006 12:48:04 PM PDT by MineralMan (godless atheist)
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To: null and void
It was in that "War of the Worlds" movie. I just looked it up. I could have sworn it was in "Them," too. Maybe it was in both. I'll have to look again.
23 posted on 04/04/2006 12:56:49 PM PDT by MineralMan (godless atheist)
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To: MineralMan

Giant irradiated bug movie trivia question: Who is the famous actor who started his film career as a jet pilot in 'Tarantula'?


24 posted on 04/04/2006 12:57:00 PM PDT by Rembrandt_fan
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To: Rembrandt_fan

That would be Clint Eastwood, although he did not receive a credit in the film. I cheated, though: I looked it up.


25 posted on 04/04/2006 1:02:31 PM PDT by MineralMan (godless atheist)
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To: Sopater

When I was a little kid, I used to scoop one anthill with a bucket, retrieving thousands of ants, and then dump them on a different anthill on the other side of the yard. A massive battle would then ensue.


26 posted on 04/04/2006 1:20:46 PM PDT by dinoparty
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To: MineralMan

> It was in that "War of the Worlds" movie.

Nope. "WotW" used the B-49. B-35 had props, B-49 had jets.

Dunno what plane "Them" had.


27 posted on 04/04/2006 1:27:32 PM PDT by orionblamblam (A furore Normannorum libera nos, Domine)
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To: null and void

...which has the distinction of being the FIRST giant radioactive insect monster movie, for you film buffs!


28 posted on 04/04/2006 1:34:37 PM PDT by 50sDad (ST3d: Real Star Trek 3d Chess: http://my.ohio.voyager.net/~abartmes/tactical.htm)
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To: orionblamblam

"Dunno what plane "Them" had.
"

Yes. The plane in "Them" had pusher props, if memory serves. I'm pretty sure it was the XB-35. It's sort of fixed in my mind, but I'm going to have to order "Them" and have another look.


29 posted on 04/04/2006 1:43:27 PM PDT by MineralMan (godless atheist)
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To: MineralMan

If it was a flying wing with four pusher props... it was a B-35. It it was a flying wing with jet engines, it was a B-49. If it was a flying wing with jet engines and two underslung jet engine pods, it was a YRB-49 (built from B-35).


30 posted on 04/04/2006 1:46:36 PM PDT by orionblamblam (A furore Normannorum libera nos, Domine)
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To: Sopater
... they started chopping off appendages to see if the insects could still soar ... after multiple leg amputations and even after removal of their abdomens, which ordinarily comprise 30 percent of their body weight. When the researchers covered the insects' eyes with dots of white nail polish, however, they sank to the forest floor like stones.

My brother Raymond was ahead of his time.

31 posted on 04/04/2006 1:52:27 PM PDT by Between the Lines (Be careful how you live your life, it may be the only gospel anyone reads.)
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To: Between the Lines
... they started chopping off appendages to see if the insects could still soar ... after multiple leg amputations and even after removal of their abdomens, which ordinarily comprise 30 percent of their body weight. When the researchers covered the insects' eyes with dots of white nail polish, however, they sank to the forest floor like stones.

Do you suppose they may have been dead? Maybe they were simply unconscious...
32 posted on 04/04/2006 4:35:31 PM PDT by Sopater (Creatio Ex Nihilo)
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To: Moose4
"As God is my witness, I thought turkeys could fly."

The ones in Congress do. They use airlines.

33 posted on 04/04/2006 5:02:17 PM PDT by Old Seadog (Inside every old person is a young person saying "WTF happened?".)
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To: Rembrandt_fan
Great THEM quote - "Make me a Sergeant in charge of the booze!"
34 posted on 04/04/2006 5:30:22 PM PDT by MrBambaLaMamba (Buy 'Allah' brand urinal cakes - If you can't kill the enemy at least you can piss on their god)
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To: KarlInOhio
Ants have wings during mating season.

Only drones and queens have wings - workers never do.

35 posted on 04/04/2006 5:33:31 PM PDT by Senator Bedfellow
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