The species to which the legendary Jedi Grand Master Yoda belonged was ancient and shrouded in mystery. Members of this species were rarely seen anywhere in the galaxy. The few members of this species seen in the galaxy were all Force-sensitive, and the species' homeworld and name were unknown. The species, its origins shrouded in mystery, was rarely seen, with only a few members known to the wider galaxy. All known members of the species active in the galaxy were Force users and affiliated with the Jedi, and had especially high Midi-chlorian counts.