The period known as Dreamtime is when they believe the world was created.
Some of them believed in Yara-Ma-Yha-Who, a vampire who jumped out of fig trees, ate people, and vomited them back up; reborn from the experience, they were unharmed though slightly shorter.  Among these people's creator gods was a female snake named Eingana, and a "rainbow serpent," who inhabits water holes. The Alcheringa is the period before these people's creation, and their other deities include fairies called the Mimi, who lived in what is now Arnhem Land. The period known as Dreamtime is when they believe the world was created. FTP, name these people to whom Uluru, or Ayer's Rock, is sacred, the indigenous people of Australia.
Some of them believed in Yara-Ma-Yha-Who, a vampire who jumped out of fig trees, ate people, and vomited them back up; reborn from the experience, they were unharmed though slightly shorter.  
Australian Aborigines