Sadly, all of this fine work by McFadden is mostly lipstick on a pig. Calling this script dumber than a box of hammers is being horrendously unfair to encased construction tools everywhere. This is another example of Brannon Braga’s love-hate relationship with evolutionary biology that we saw in “Identity Crisis” and will see again in Voyager’s “Threshold.” Introns don’t do what the script says they do, evolution doesn’t work the way the script says it does, and there’s no way that a “de-evolving virus” could possibly turn a person into a spider or a marmoset. (If it was really a “de-evolving virus,” all the humans would look like Riker or Ogawa.) This is a story that definitely puts the “fiction” in “science fiction,” ’cause there sure as heck ain’t no science here.