August 2, 2015 11:20 AM EDT

Images honoring Cecil the lion and other endangered species illuminated the south side of Empire State Building on Saturday evening, broadcasting the plight of mass extinction onto one of New York’s most iconic landmarks.

The one-day show, called Projecting Change, is part of a promotion for the upcoming documentary Racing Extinction, which is set to air on Discovery Channel in December, according to the film’s official Facebook page. Projections of birds, tigers and bears were featured on the building, in addition to images of Cecil the lion, whom authorities say was killed illegally by an American dentist on July 1.

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