so this morning i wake up to loud thunder and i look into my tank and theres my spider in the middle just wobbling his head back and forth and in a backward circular motion i pulled him out and he stopped doing it just started moving normal this is my 1st spider and the 1st time ive seen it do those kinda movements i know about the gen. mutation they have.. so is it something they do if their scared because of the thunder was pretty loud shook the whole house or they just like to do the wiggle dande when no 1 is looking lol