Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

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
Navigation: use the links below to view more comments.
first previous 1-2021-35 last
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
[ Post Reply | Private Reply | To 1 | View Replies]

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)
[ Post Reply | Private Reply | To 20 | View Replies]

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)
[ Post Reply | Private Reply | To 20 | View Replies]

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
[ Post Reply | Private Reply | To 22 | View Replies]

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)
[ Post Reply | Private Reply | To 24 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

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)
[ Post Reply | Private Reply | To 23 | View Replies]

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)
[ Post Reply | Private Reply | To 11 | View Replies]

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)
[ Post Reply | Private Reply | To 27 | View Replies]

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)
[ Post Reply | Private Reply | To 29 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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)
[ Post Reply | Private Reply | To 31 | View Replies]

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?".)
[ Post Reply | Private Reply | To 15 | View Replies]

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)
[ Post Reply | Private Reply | To 14 | View Replies]

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
[ Post Reply | Private Reply | To 12 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-35 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson