Twin sister to Apollo, she was goddess of chastity, virginity, the hunt, the moon, and the natural environment. She was chief hunter to the gods and goddess of hunting and of wild animals, especially bears. She is the daughter of Zeus and Leto. Even though she is a virgin goddess, she also presides over childbirth. Sacred to her are the laurel, fir tree, fish, stag, boar, bear, dog, goat, bee and other animals. Although traditionally the friend and protector of youth, especially young women, Artemis prevented the Greeks from sailing to Troy during the Trojan war until they sacrificed a maiden to her. According to some accounts, just before the sacrifice, she rescued the victim, Iphigenia.