Because they don't swim in pairs. Are there two of those fish? Nahhh.
Krillex.
I am saury.
Because all the ones who can run, jump or swim are ready in the US.
A Sturgeon
A pair of ankles
Using a pair of Caesars.
They keep getting caught in the net!
You can tuna piano, but you can't piano tuna.... What about the pot of glue I knew you'd get stuck.