What did the bison say to his son when he left the ranch? Bi-son.
What's the difference between a bison and a buffalo?
You can't wash your face in a buffalo.
What's a bison's favorite gun?
A PP Bizon.
What did the bison say to his son leaving for school?
"Bye son!"
Get it? Bye son, Bison!
What did the bull say to his son when he was going to school? "Bison!"
What did the bull say when he went to college?
Bison!
What did the buffalo say to his son when he left for college? -- "Bison."