Here’s example #1.
Jerry Coyne, Why Evolution is True: “New parts evolve from old ones, and have to work well with the parts that have already evolved”.
Casey Luskin misquoting Coyne at IDEA: “[n]ew parts don’t evolve from old ones, and we have to work well with the parts that have already evolved. …”
Note the insertion of ‘don’t’ and ‘we’, which drastically changes the meaning.
Further examples are available once you’ve acknowledged this one.