Known Clans
Besides the Manhattan Clan which is the focus of the series, several other clans were introduced during the second season of the show. In the show's continuity, gargoyles had once been an abundant species that had dwindled due to the rather antagonistic co-existence with humanity. Only a few clans survive today, each for different reasons.
Each clan has different physiological and cultural differences based upon where in the world were they are located. Despite this, they all share the same attributes: they go into stone sleep during the day, all are fierce and formidable fighters, and they all have a specific area, persons, or concept that they protect. Series creator Greg Weisman has also indicated that despite looking very different, all gargoyles are members of one species, and do not necessarily have all the biological features one would assume from their appearance (for example, though Leo resembles a lion, he is not a mammal, nor is any other gargoyle).
Read more about this topic: Gargoyle Clan