I always thought that bison and buffalo were the same thing, but apparently not (we have bison in America, this is a buffalo). Nevertheless, it is common slang to call these creatures "American buffalo", and "buffalo burgers" are sold everywhere here.
Here are more pictures of bison and my family looking at bison.
Who brings an iPad to see bison?
Did you know that the following is a gramatically valid sentence (click here for an explanation)
"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo."