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Old Sep 15, 2007, 2:02 PM   #1
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Old Sep 15, 2007, 3:56 PM   #2
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I dorecognize this as an outstanding acievement, shooting these IIF (insects in flight), but whatare they?? And what are they doing? Is this yet another porn thread?

Kjell
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Old Sep 15, 2007, 4:11 PM   #3
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double dragon fly porn
it's about as close as i've gotten one. still a POS.

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Old Sep 15, 2007, 4:18 PM   #4
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Roy, you dirty old man... lol

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Old Sep 16, 2007, 9:02 AM   #5
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Roy, you're still my idol for bugs!:G
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Old Sep 16, 2007, 11:30 PM   #6
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Well, they aren't skydivers (although at first glance it looked that way)! That's what insects are all about - reproducing and eating, in that order (if you need proof, look at the last photo panel in the Fritillary Frolics thread. My back yard is alive with squadrons of butterflies chasing each other with only one thing on their minds - I should have entitled it "Sex in the City," or better yet, "Sex and the Single Butterfly!"
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Old Sep 19, 2007, 1:09 PM   #7
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Forgetting the aerial copulation that was about to take place, this photo actually illustrates something interesting about insect flight. The first dragon fly has its wings momentarily in an "X" pattern, being at the extremes of the wing strokes - the forewings down and the hind wings up (the wings of the second one are in midstroke). Primitive insects (which dragonflies are) haveone set ofmuscles that control the wings attached directly to each (called "direct flight") and allow the wingstobeat alternately. The whirring sound they make comes from the wings beating against the air. More "advanced" insects have one set of muscles that shorten the thorax ("chest") and another that flattens it. These contract alternately and deform the thorax, which changes shape with an audiblesnap, moving the wings attached to it in unison ("indirect flight") The buzzing sound you hear from bees, flies, and mosquitosis the series of pops as the thorax changes shape with each wing beat. See? Even a less than satisfactory photograph can serve a useful purpose!
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