Frases de Canserbero Líricas Profundas e InolvidablesCancerbero is a mythical monster in Greek legends. It is commonly portrayed as a multi-headed canine watching over the gates of the underworld. In some myths, Cancerbero possesses three heads, while in others it can have up to nine heads. The term "cancerbero" is also used to refer to a ferocious and unrelenting protector.