Cerberus
Overview
 
Cerberus or Kerberos, (Greek form: Κέρβερος, ˈkerberos) in Greek
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...

 and Roman mythology
Roman mythology
Roman mythology is the body of traditional stories pertaining to ancient Rome's legendary origins and religious system, as represented in the literature and visual arts of the Romans...

, is a multi-headed
Polycephaly
Polycephaly is a condition of having more than one head. The term is derived from the Greek stems poly- meaning 'much' and kephali- meaning "head", and encompasses bicephaly and dicephaly . A variation is an animal born with two faces on a single head, a condition known as diprosopus...

 hound
Hound
A hound is a type of dog that assists hunters by tracking or chasing the animal being hunted. It can be contrasted with the gun dog, which assists hunters by identifying the location of prey, and with the retriever, which recovers shot quarry...

 (usually three-headed) which guards the gates of the Underworld
Underworld
The Underworld is a region which is thought to be under the surface of the earth in some religions and in mythologies. It could be a place where the souls of the recently departed go, and in some traditions it is identified with Hell or the realm of death...

, to prevent those who have crossed the river Styx
Styx
In Greek mythology the Styx is the river that forms the boundary between the underworld and the world of the living, as well as a goddess and a nymph that represents the river.Styx may also refer to:-Popular culture:...

 from ever escaping. Cerberus featured in many works of ancient Greek and Roman literature and in works of both ancient and modern art and architecture, although, the depiction and background surrounding Cerberus often differed across various works by different authors of the era.
Unanswered Questions
 
x
OK