>>32648062GameFreak didn't say they were Pokemon when they promoted them, making them seem as a third kind in the series but Burnett confirms they're Pokemon off the bat before introducing them as Ultra Beasts as well as the fact other Pokemon have been known to do dimensional fuckery.
Ultra Beasts are more or less ascended Pseudo-Legendaries with Min-Maxed stats, or rather wild Pokemon with power to rival Legendaries, who are somewhat sapient or often dormant by comparison.
