How is this experiment supposed to yield useful results if they don’t have additional feet wit

How is this experiment supposed to yield useful results if they don’t have additional feet wit
How is this experiment supposed to yield useful results if they don’t have additional feet wit
How is this experiment supposed to yield useful results if they don’t have additional feet wit
How is this experiment supposed to yield useful results if they don’t have additional feet wit
How is this experiment supposed to yield useful results if they don’t have additional feet wit