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| Photo by Marty Horowitz 10/23/2014 |
Desert Firetails, caught in the act!
You can tell dragon- and damselflies apart by the way they hold their wings when perched. There are exceptions, of course, but damselflies (see above) hold their wings parallel to their bodies; dragonflies, perpendicular. And that, my friends, is one of the many reasons to pay attention in geometry.
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