Her skeleton replacement was introduced to the media in a prank statement that said the Little Mermaid "had returned".
The statement claimed it was the only remaining complete skeleton of a "Hydronymphus pesci", a species said to be extinct since the end of the 17th century.
It claimed to have acquired the remains at the beginning of the 18th century, and that the only other skeleton of the specimen, in Saint Petersburg's Hermitage museum, was "not as complete as Copenhagen's" because of its missing tail.
After basking in the Copenhagen sun for two hours, the fake skeleton was returned to the museum where it would be displayed during the Easter holidays, Strager said.
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