Blue Dasher Pachydiplax longipennis

Here's something remarkable: this blue dasher is the only species in its entire genus, making it one of nature's unique evolutionary experiments. The fact that it's thrived across much of North America—from Canada all the way to the Bahamas—shows that being alone in your genus isn't a limitation; it's actually an advantage. This skimmer family member seems to have found an unbeatable formula, so why would competitors ever evolve?