Kangaskhan, known as the Parent Pokémon, is a combination of the word kangaroo and the name of the famous ruler of the Mongol Empire, Genghis Khan. Its Japanese name is derived from "kangaroo" and "ruler". Unlike real kangaroos, Kangaskhan do not hop, though they do have pouches in which they carry their infants. The infants don't leave the pouch until they are three years old. Kangaskhan is a female-only Pokémon. It will fight to protect its young, no matter how injured it is during the battle.