Dragonfly head. Colured scanning electron micrograph (SEM). Dragonflies belong to the scientific order Odonata, meaning "toothed ones, " because of the powerful serrated jaws. Dragonfly jaws can open as wide as their entire head, allowing them to eat large prey. When they hunt the large compound eyes of a dragonfly allow it to sort its visual field, like a grid. Keeping their prey in the same section of the grid helps with accuracy when intercept something mid-flight. Magnification: x10 when printed at 10 centimetres wide.