Meganeura was a giant dragonfly the size of an eagle. It could fly up to 70 miles per hour. It lived in the Late Carboniferous and early Permian. At the time, it was the biggest flying animal. It did not just eat insects and spiders, like its closest relative, the dragonfly, it also picked off Petrolacosaurus and other vertebrates. Its legs were covered in spines and could grasp very well. It was probably scary to most of the other animals at the time.