The rotting carcass was reportedly discovered last week, and as a result of its unusual appearance, was initially labelled as a 'sea monster'.
The animal measured nine metres in length, with large teeth and flippers.
A video of the carcass was later posted online, with youtube users speculating whether the animal had indeed been a sea monster.
However a marine biologist later identified the remains as that of a killer whale, sighting its distinctive fin as proof the animal was not a monster.
This is not the first time the appearance of an unusual carcass on a beach has sparked theories of sea monsters.
In 1896 a six-foot-tall carcass, dubbed the St. Augustine Monster, wash ashore in the US, later identified as a giant octupus but recently confirmed as a mass of whale blubber.
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