The thunderbird is a legendary creature in certain North American indigenous peoples' history and culture. It is considered a supernatural being of power and strength. It is especially important, and frequently depicted, in the art, songs and oral histories of many Pacific Northwest Coast cultures, but is also found in various forms among some peoples of the American Southwest, East Coast of the United States, Great Lakes, and Great Plains.
In Greek mythology, Echidna (; Greek: Ἔχιδνα, "She-Viper") was a monster, half-woman and half-snake, who lived alone in a cave. She was the mate of the fearsome monster Typhon and was the mother of many of the most famous monsters of Greek myth.
