It [Xi Draconis] bore the traditional names Grumium. This is a graphic corruption of the Latin Grunnum ‘snout’, as Ptolemy had described this star as being on the jawbone of the dragon.
As well as being able to see more colors than humans, dragonflies are able to see ultraviolet light. These rays of light from the sun are invisible to humans, however the dragonfly’s ability to see them helps it hunt its prey.