What is the scientific study of insects?

Entomology

Who retrieved Cerberus from the Underworld alive as one of his Twelve Labors? Which hero defeated Medusa? Who was the Native American leader who organized a multi-tribal confederacy against U.S. expansion in the Great Lakes region in the early 19th century? Which character is the son of Hulk in comics? What type of creature is Spyro, protagonist of the Spyro series?