The Anunnaki are a race of creatures living in another dimension.

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The Anunnaki have no physical forms, so they have to inhabit various animals' bodies, thus being responsible for mythological figures as the Egyptian gods, China's Monkey King and the Aztec's Quetzalcoatl among others. It is revealed that the animals which can talk are descendants of the Anunnaki. Scooby Doo is one of them.