The darner dragonfly is a very fast dragonfly, flying at speeds up to 40 miles per hour! They all have a distinctive green hue, but the males have blue underbellies while females have yellow ones. It all sounds pleasant enough, no? Well, did you know their young eat tadpoles…and even some small fish! Worse, these creepy carnivores will eat each other in a pinch! Grotesque does not describe it…