The Pittsburgh Penguins once used a real penguin as its mascot.
From The Point: Catching up with the Penguin who played the most games without getting a goal
Penguins: The Story Behind Each Player's Jersey Number
It's official: Penguins announce return of “RoboPenguin” jersey for this season - PensBurgh
The inside story of the Penguins' 'Pittsburgh Pigeon' logo - The Athletic
Hockeycentral, Penguins, History
Pittsburgh Penguins
Uniform History Pittsburgh Penguins
Hockeycentral, Penguins, History
UNIFORM HISTORY
Penguins go full “Snoop Dogg” with new alternate jersey - PensBurgh
Tim Benz: After Penguins' costly loss in Detroit, Casey DeSmith's comment resonates
Ron Cook: Penguins have no one to blame but themselves for sinking season