Short answer they wanted to do solo music, Zane was the first one to leave due to stress and anxiety while on tour in 2015 , but they did recently go on tour again :)
The 17th Amendment (C) established the system of direct elections of Senators by the voting public. This changed the system whereby these individuals were previously elected by state legislatures.
Because buffalo were such big animals they could feed a lot of people and many of their parts came to use such as their hides and horns