The axolotl are a myth. My sister’s friend’s great-grandfather swears he met one while traveling as a youngster, but no one actually believed them. At this point, I think they saw a Grung or maybe a Locathah with some strange costume or deformity, and mixed them up. But...I mean if they were....that’d be kinda cool, wouldn’t it??
This race of small creatures are communal and friendly by nature, living on a secluded island with no known predators or antagonists. They do keep their home a secret from everyone, and have ways to deter interlopers if necessary. There is the occasional individual who ventures out into the wide ocean, those who return generally say they should have just stayed at home.