At rest, a damselfly folds its wings together at an upward angle above the back, while a dragonfly holds its two pairs of wings out from the body like a fixed-winged aircraft. Both are predators ...

I now knew that this yellow-and-black creature was a Gomphid, a genus of dragonfly. But many of the dozens of other Odonata, the general scientific name for dragonflies and damselflies ...