The discovery of a dragonfly fossil from 250 to 300 million years ago offers a peek into a time when insects were much, much bigger. This prehistoric dragonfly was a giant compared to today's dragonflies, with a wingspan of about 2 feet (60 cm). This makes it one of the largest flying insects ever to exist.🐛🦟 Scientists think this giant dragonfly belonged to a group called Meganeura, which lived during the late Carboniferous to early Permian period. During that time, Earth's atmosphere had a h