We've been so careful not to move the Biosphere since we put it together. Until today. Crookshanks was trying to balance his big self on top of the frog tank (where he is not allowed) and decided to step on top of the jar when he tried to squeeze himself down behind the light on the tank. The jar slid, and the top flopped.
Top flopped--Day 36
He is not one bit concerned, either.
Does science have a chance with a cat roaming around?
Will this be the end of the Biosphere? Stay tuned...