Forsythia mermaids have a range of tails from 2-4 meters in length as a result of
genetic variation. Most mermaid tails are around 3 meters. On the reef they live on,
a new predator of the mermaid arrived and its quick speed meant only mermaids
who could maneuver quickly, those with longer tails, were able to survive. Over the
next few generations, what do you predict happened to the tail length of the
Forsythia mermaids?