Factoids about Dragonflies

Dragonflies do not bite or sting.
Although dragonflies may perch on plants, they do not eat plants. They are carnivores, and eat other insects such as mosquitoes.
Dragonflies are found worldwide, on every continent except Antarctica.
Central Maryland alone has about 100 different species of dragonflies.
Dragonflies have populated the earth continuously for 300 million years.
Prehistoric dragonflies were much larger, with wingspans up to 2 feet!
Some dragonflies migrate, like birds.
Dragonflies undergo metamorphosis, like butterflies and moths, except they don’t make a cocoon.
Dragonflies spend most of their lives underwater as voracious larvae, with gills.
Adult dragonflies breathe air, even though they don’t have lungs. They expand and contract their "tail" (aka abdomen), to force air through rows of small holes.