Which animal swims vertically and communicates via color-changing skin during courtship?

Cuttlefish

Which science fiction movie popularized "May the odds be ever in your favor"? In the Pokémon series, which Pokémon is number 1 in the Pokédex? Who is known as the "Father of Bluegrass Music"? Which character famously proposes multiple times throughout the series? Who coached 'The Greatest Show on Turf' Rams to their Super Bowl XXXIV victory?