The crowd laughed and jeered but undeterred he opened a box on his desk and a spider crawled out. `
Spider, walk left’ The spider moved to its left.
The crowd was silenced. `Spider, move right.’
The spider moved right.
The crowd gasped. Forward, backward, the spider responded again and again.
The crowd applauded in awe. The scientist then removed all of the spider’s legs.
The crowd, confused by this, watched in silence.
‘Move left’ The spider didn’t move.
‘Move right’ Nothing. Forward, backward, no response.
‘This is to demonstrate my second finding. Once you remove a spider’s legs, it goes deaf.’