They labeled the reports fake news, a myth concocted to defraud the susceptible. Rumors persisted and experts swore to the claim’s veracity. Video evidence showed the transformation of an ancient chrysalis discovered in the museum’s basement.

“Roman,” some proclaimed.

“Greek,” cried others.

“Carbon dating says it’s much older.”

The curious stood in the line determined to see the beast before their eyes and discern the trut...