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Hi Steve & All,
Because size matters if you are a predator which specializes in catching
insects on the wing. You must be large enough to remain airborne with a
cargo of prey on board.
I expect the models with the two-foot wingspans fell by the wayside for
converse reasons. Just too much momentum and fuel consumption if you must be
able to quickly change speed and flight direction to catch smaller and agile
prey.
Yt, Dave Webster Kentville
----- Original Message -----
From: "Stephen Shaw" <srshaw@Dal.Ca>
To: <naturens@chebucto.ns.ca>
Sent: Monday, July 06, 2015 11:47 AM
Subject: RE: [NatureNS] Queen Bee
> Hi Mary,
> Tastes can vary of course, but Dragonflies seem to be such one-trick
> ponies: once you've seen one you've seen them all (?).
> Give me Flies any day -- a far more interesting and varied-lifestyle
> group, an even younger Order and much larger.
> There are millimeter-sized flies and even sub-mm sized fig wasps, so why
> are there no small dragonflies?
> All the best,
> Steve (Hfx)
> ________________________________________
> From: naturens-owner@chebucto.ns.ca [naturens-owner@chebucto.ns.ca] on
> behalf of Mary Macaulay [marymacaulay@hotmail.com]
> Sent: Sunday, July 5, 2015 8:10 PM
> To: naturens@chebucto.ns.ca
> Subject: Re: [NatureNS] Queen Bee
>
> Dragonflies are the most fascinating of insects. Love them!
>
> With kindest regards,
>
> Mary (Macaulay), P.Eng.
> Owner
> Remember Adventures
> RememberAdventures.ca<http://RememberAdventures.ca>
> Now Open for Buggy rentals, picnics, pollinator meadow & games !!
> Main Street & Trans-Canada Trail
> Tatamagouche
> 1-902-293-1533
> Twitter @RememberAdventures & @InsectRecovery
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2015.0.6037 / Virus Database: 4365/10162 - Release Date: 07/04/15
>
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