Protesters hold signs in support of science as they march from downtown Chicago. The March for Science went from downtown 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)

The March for Science goes through Grant Park headed 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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