The Garden Bug: Dragonflies
By Brenda Weaver
In their larval stage dragonflies are aquatic. They eat tadpoles, mosquitoes, tiny fish, other insect larvae and even each other.
In their adult form, they hunt flying insects for food, and can catch and eat hundreds in a day. In one Harvard University study, dragonflies were observed to catch 90-95% of the prey released into their enclosure.
Source: smithsonianmag.com