Are Koi just giant goldfish ?

In article , "Jim and Phyllis
Hurley" writes:

They are close enough to cross-breed, but far enough that I gather the
crosses are sterile. Haven't had that happen in my pond...babies just don't
seem to make it to adulthood.

I think I had this happen last year. I had a monster fish show up at feeding,
still brown/grey and HUGE, looks like a koi, but I don't see whiskers. He's
got to be a cross as he's twice the size of my biggest 7 year old goldfish.

Karen
Zone 5
Ashland, OH
http://hometown.aol.com/kmam1/MyPond/MyPond.html
My Art Studio at
http://members.aol.com/kmmstudios/K....M.Studios.html
for email remove the extra extention