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In Photos: The Best Signs from the 2017 March for Science

Downtown LA

Marchers gather in Pershing Square in downtown Los Angeles for the March for Science.

(Image credit: Calla Cofield/Live Science)

Marchers gather in Pershing Square in downtown Los Angeles for the March for Science.

LA crowd

Some 50,000 people signed up online to participate in the March for Science in Los Angeles, but event organizers estimate that more people are actually in attendance.

(Image credit: Calla Cofield/Live Science)

Some 50,000 people signed up online to participate in the March for Science in Los Angeles, but event organizers estimate that more people are actually in attendance.

Marching in San Francisco

People listen to a pre-march talk near the Ferry Building ahead of the March for Science in San Francisco.

(Image credit: Mike Wall/Live Science)

People listen to a pre-march talk near the Ferry Building ahead of the March for Science in San Francisco.

Manhattan marchers

In New York City, the NYPD estimated that 40,000 people took place in the March for Science.

(Image credit: Hanneke Weitering/Live Science)

In New York City, the NYPD estimated that 40,000 people took place in the March for Science.

Coral research

Marchers represented a variety of scientific interests, ranging from medical science to ocean science.

(Image credit: Laura Geggel/Live Science)

Marchers represented a variety of scientific interests, ranging from medical science to ocean science.

Famed scientists

Famous scientists were honored during the March for Science in Washington, D.C.

(Image credit: Tariq Malik/Live Science)

Famous scientists were honored during the March for Science in Washington, D.C.

No Planet B

A man dressed as an astronaut holds up a sign at the March for Science in Boston.

(Image credit: Scott Eisen/Getty Images)

A man dressed as an astronaut holds up a sign at the March for Science in Boston.

Make America think again

Linda Montaquila, 55, a construction lawyer from Jupiter, Florida, took part in the March for Science in Washington, D.C.

(Image credit: Tariq Malik/Live Science)

"As a child, I learned that we did not inherit this planet from our parents. We are borrowing it from our children, and I am marching here today to make sure my children and my children's children have an Earth. To protect it," Linda Montaquila, 55, a construction lawyer from Jupiter, Florida, told Live Science. Montaquila took part in the March for Science in Washington, D.C.

Demand evidence

Marchers pose with their signs for the March for Science in Washington, D.C.

(Image credit: Mindy Weisberger/Live Science)

Marchers pose with their signs for the March for Science in Washington, D.C.

Support science

Participants gather on the National Mall for the rally before the March for Science in Washington, D.C.

(Image credit: Jessica Kourkounis/Getty Images)

Participants gather on the National Mall for the rally before the March for Science in Washington, D.C.