¿QUIÉN ERA CANCERBERO EN LA MITOLOGÍA GRIEGACancerbane is a mythical monster in Greek legends. It is often depicted as a multi-headed canine watching over the gates of the underworld. According to some legends, Cancerbero possesses three heads, while in others it can have up to nine separate heads. The word "cancerbero" is additionally used to refer to a vigilant and unrelenting protector.