Callisto (mythology) afterwards, when she was already with child, was seen bathing and so discovered. Upon this, the goddess was enraged and changed her into a beast. Thus she became a bear and gave birth to a son called Arcas. Either Artemis "slew Kallisto with a shot of her silver bow," perhaps urged by the wrath of Juno (Hera) or later Arcas, the eponym of Arcadia, nearly killed his bear-mother, when she had wandered into the forbidden precinct of Zeus. In every case, Zeus placed them both in the sky as the constellations Ursa Major, called "Arktos" (αρκτος), the "Bear", by Greeks,
Ino (Greek mythology) son, King Pentheus, while struck with Dionysian madness, and Actaeon, son of Autonoe, the third sibling, was torn apart by his own hunting dogs. Also, the insanity of Ino and Athamas, who hunted his own son Learchos as a stag and slew him, can be explained as a result of their contact with Dionysus, whose presence can cause insanity. None can escape the powers of Dionysus, the god of wine. Euripides took up the tale in "The Bacchae", explaining their madness in Dionysiac terms, as a result of their having initially resisted belief in the god's divinity. When Athamas returned