Ngalyod, first-born son of Yingarna, who is the Rainbow Serpent creator of the Kunwinjku in western Arnhem Land in Australia—sucks up water during the dry season and spits it out as rain during the wet season. Like Iris, Ngalyod helps to ensure fertility with rains, but he can destroy as well as nurture. Yingarna, the creator of the Kunwinjku people, is "nominally female" and androgynous like her son Ngalyod. She possesses cunningly ambivalent form; as she combines elements of snake, fish, crocodile, catfish, emu, and kangaroo. The Estonian Rainbow Serpent, like the Aborigines' Ngalyod, sucks up water and spits rain, and also has a chimeric identity – it possesses an ox's head on its serpent body.