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

Science matters

Marchers showed up in droves to support scientists during the March for Science in Los Angeles.

(Image credit: Calla Cofield/Live Science)

Marchers showed up in droves to support scientists during the March for Science in Los Angeles.

Get the difference?

Participants march through the streets of Manhattan during the March for Science in New York City.

(Image credit: Hanneke Weitering/Live Science)

Participants march through the streets of Manhattan during the March for Science in New York City.

Inconvenient truth

A man holds up his sign on the Boston Common during the March for Science in Boston, Massachusetts.

(Image credit: Scott Eisen/Getty Images)

A man holds up his sign on the Boston Common during the March for Science in Boston, Massachusetts.

Rallying in Seattle

Brian Ehlert from Woodinville, Washington, joins others for a rally prior to the March for Science at Cal Anderson Park in Seattle, Washington, on April 22, 2017.

(Image credit: Karen Ducey/Getty Images)

Brian Ehlert from Woodinville, Washington, joins others for a rally prior to the March for Science at Cal Anderson Park in Seattle, Washington, on April 22, 2017.

Marching in Silicon Valley

People gathered in Silicon Valley for the March for Science, many holding signs to call attention to the realities of climate change.

(Image credit: Rachael Rettner/Live Science)

People gathered in Silicon Valley for the March for Science, many holding signs to call attention to the realities of climate change.

Braaaaains

Marchers in "brain hats" pose on the National Mall in Washington, D.C.

(Image credit: Jeanna Bryner/Live Science)

Marchers in "brain hats" pose on the National Mall in Washington, D.C.

Thanks to science

The March for Science in New York City started in Columbus Circle and ended in Times Square.

(Image credit: Laura Geggel/Live Science)

The March for Science in New York City started in Columbus Circle and ended in Times Square.

Channeling Albert

March participants called on government officials to support and safeguard science.

(Image credit: Jessica Kourkounis/Getty Images)

March participants called on government officials to support and safeguard science.

In the nation's capital

Scientists and supports gather on the National Mall in Washington, D.C.

(Image credit: Jessica Kourkounis/Getty Images)

Scientists and supports gather on the National Mall in Washington, D.C.

Sea of signs

A sea of marchers and signs flood the National Mall.

(Image credit: Jessica Kourkounis/Getty Images)

A sea of marchers and signs flood the National Mall.