The many-headed Dragon of Greek mythology. Born from Echidna and Typhon much like the Nemean Lion, and was said to have a shapeless reptilian body with many heads. Some sources state that the Hydra was born from Styx and the Titan Palla. It lived in a cave in a swamp near the ancient city of Lerna in Argolis. Every time it lost a head, two more would grow in its place. The stench of the beast's breath was poisonous and would kill anyone who inhaled it. Some versions described the beast as spewing venom rather than a deadly cloud of poison. For many years, it terrorized the locals.