Dragonfly swarms on the Rock River in Janesville

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Glen Loyd
September 7, 2012

You learn something new about nature all the time when you live by a river. This time it's about dragonfly behavior. Some of the dragonflies you'll see in this video have numbers on their wings. They were part of a Harvard science project to observe how dragonflies capture prey. The dragonfly animation in the video was made with parts left over from a dragonfly swarm like the current ones around Janesville. (Remember the Rock River clean up in Beloit September 22 Rockriversweep.org)

Arizona dragonfly swarm

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