Picture of Hydra (comics)

Hydra is a fictional terrorist organization appearing in comic books published by Marvel Comics. Though often capitalized, the name is not an acronym but rather a reference to the mythical Lernaean Hydra, and Marvel's official stylization presents it as Hydra. The organization's motto references the myth of the Hydra, stating that "if a head is cut off, two more will take its place" proclaiming their resilience and growing strength in the face of resistance. Hydra agents often wear distinctive green garb featuring a serpent motif.