Originally Posted by Sarcastic
What about Seahawks, Dolphins, Cardinals, Blue Jays, and Orioles? All very non threatening animals.
Also look at the Philadelphia Phillies. Sounds like a female horse.
I think it's more to due with the syllables, like baglered mentioned earlier.
Can New Orleans Pelicans be shorten somehow?
All those teams you mention has either 2 syllables or a shortened nickname. Seahawks, "Cards," "O's," etc.