[quote=souleaterfan320]
i thought that was a general "everyone knows that" kinda thing.i mean, look at the grand fisher...
[/quote]

The only Hollow that have a human form (That I know of) Are Espada's. Arrancars don't take on human form. However, when Orihime's brother turned into a Hollow, he was snake-like but nothing human about it so yeeeeeeeeeah oxo