Scientists and their supporters held Marches for Science in cities around the world on Saturday amid a perceived hostility of the Trump administration to science.

Here are some of the most ingenious, witty, and delightfully nerdy signs on display around the world.
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Sine game 💯
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"Girls just wanna have funding" Sam Ritzer. Geology pjs student at Stanford #marchforscience #ScienceMarch
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Nominee for nerdiest sign #ScienceMarch
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Allison Snow, a botanist from OSU. Her sign references the movie Martian #MarchForScience
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Cong Huang is a scientist at Regeneron. Scientists are usually "holed up in our labs, but it's important to march"… https://t.co/H0difPMweR
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#ScienceMarch "build this wall"
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Susan Stevenson came to NYC from San Diego to #marchforscience
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Beautiful and meaningful signs at the #sciencemarchnyc #sciencemarch
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Great signs at Springfield, MO Science March!
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#marginsci #sciencemarch
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You thought it was a DJ, but you were wrong. #marchforscience
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Just a taste of the sights and signs of The March for Science in DC. #MarchForScience #sciencemarchdc
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Such creative signs at the #Pittsburgh #marchforscience like this one. We #resist fearful, closed minds with energy… https://t.co/EWmBw7RpfP
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More good signs at the NYC #marchforscience. #ScienceMarch #resist
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The Townleys are mad about cuts to environemntal policy. "We'll be fine today but what about tomorrow"… https://t.co/TxS8SJZpfj
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Excited to #marchforscience with the #standupforscience hero @eugenegu
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Marco Brenciaglia did epidemiology research on Zika in Grenada. Says loss of biodiversity will harm search for new… https://t.co/d8F3Ohb03y
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Seen at #ScienceMarchSF
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The revolution will be peer-reviewed! @KateShawOnline #marchforscience @ScienceMarchPT
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Early frontrunner for best sign at the #MarchforScience 👇🏻
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Always #ScienceMarch #marchforscience