Protester holds “science is golden” sign in support of science while marching toward the Field Museum of Natural History. Approximately 40,000 people attended the national day of march in Chicago. April 22, 2017 (Photograph by Shannon Jahrling)

In the 47th anniversary of Earth Day demonstrators of the March for Science cross a bridge as they head to the Field Museum of Natural History. April 22, 2017 (Photograph by Shannon Jahrling)

Protesters hold signs against the announced cuts to scientific research. The March for Science went from downtown to the Field Museum of Natural History. Approximately 40,000 people attended the national day of march in Chicago. April 22, 2017 (Photograph by Shannon Jahrling)

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