Penguin takes part in March for Science
© Monterey Bay Aquarium

The Monterey Bay Aquarium joined in the national March for Science with a video showing one of the aquarium's penguins marching on her own.

Rey, a three-year-old African penguin, was the star of the aquarium's Facebook Live video earlier this week showing the bird marching in solidarity with thousands of Americans across the country who joined Saturday's march.

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"It’s the March of the Penguin for Science with Rey!" the aquarium wrote in a Facebook post.

Onlookers held signs celebrating the second annual March for Science, including one that read "climate science: because extinction is a bummer."

The Monterey Bay Aquarium held a similar event last year for the inaugural march, featuring several of the aquarium's African penguin colony residents.

The aquarium is one of more than 100 scientific groups that have endorsed the official march, joining as one of the first sponsors last year.

About 5,000 people were expected to attend the Washington D.C. March for Science on Saturday, with thousands of others attending similar marches in cities around the country, the Washington Post reported.

While the marches do not have a specific partisan platform, demonstrators and speakers have largely been opposed to GOP-led efforts to roll back Environmental Protection Agency regulations and efforts to fight climate change. Support for the Paris climate accords, which President TrumpDonald John Trump20 weeks out from midterms, Dems and GOP brace for surprises Sessions responds to Nazi comparisons: 'They were keeping the Jews from leaving' Kim Jong Un to visit Beijing this week MORE announced last year the U.S. would exit, is also a top concern for many protesters.

Democrats capitalized on the typically left-leaning political bent of the marchers, urging voters to support candidates that believe in fighting man-made climate change in the Fall.