yup thats the wobbles. its neurological and all spiders can have it. some dont ever have it, some have it as babies and not as adults, some babies dont have it and get it as adults, or some have it their whole life. dont worry, they dont know any different and it will not effect their life
Correction all spiders wobble to a certain degree, some are train wrecks and with some it is barely noticeable which lead some people to believe that they have a Spider that does not wobble, but they do