Dragonflies are masters of flight.
Dragonflies can move each of their four wings independently. In addition to flapping each wing up and down, they can rotate their wings forward and back on an axis. This flexibility enables them to put on an aerial show like no other insect. Dragonflies can move straight up or down, fly backwards, stop and hover, and make hairpin turns, at full speed or in slow motion. A dragonfly can fly forward at a speed of 100 body lengths per second, or up to 30 miles per hour. Scientists at Harvard University used high-speed cameras to study dragonfly flight. They photographed dragonflies taking flight, catching prey, and returning to a perch, all within the a time span of just 1-1.5 seconds.
http://insects.about.com/od/dragonfliesanddamselflies/a/10-Cool-Facts-About-Dragonflies.htm
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