This story was first published in June 2019.
An Auckland resident was left puzzled when she heard a "mythical" creature making 'alien-like' noises outside her Mt Albert property on Monday evening.
The resident, who wished not to be named, posted the mysterious video to a local Facebook page asking: "Does anyone know what kind of animal/mythical monster is making this sound?"
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The video shows the resident shining a torch into the darkness of their backyard while a spine-chilling noise can be heard ringing out of the bush.
Some commenters responded in horror, while others identified the "monster" as a possum.
A spokesperson from the Department of Conservation confirmed the alien-like noise as a possum.
"Definitely a possum, they normally make this sound when they've met another one," they told Newshub.
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Researchers have documented possums making 18 different sounds, according Australian Geographic.
The sounds include "grunting, growling, hissing, screeching, clicking and teeth-chattering calls, many of which would not be out of place on a horror movie soundtrack".