The bulkiest known dragonfly is Petalura ingentissima from Australia, with a wingspan up to 16 cm.

Huge dragonflies were flying when dinosaurs roamed the earth, they have been flying for nearly 300 million years

It is estimated that the top speed for a dragonfly is between 30 and 60 km/h (19 to 38 m.p.h.)

Currently about 5000 species of dragonflies and damselflies are known