Chimera was a three-headed beast: she had a lion's body and head, a tail that ended up in a snake's head, and in the middle of her back came a goat's neck and head. Daughter of Typhon and Echidna, she could breathe fire from her mouth, according to Homer and Hesiod. Bellerophon, the great hero in Greek mythology, was the one to kill this monster, with the help of the flying horse Pegasus.