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The best signs from the science rally in Boston

Cristela Guerra/Globe Staff

Hundreds of scientists and supporters gathered Sunday in Boston’s Copley Square to rally for their work and against the perceived war on science by President Donald Trump.

Though the rally was serious in basis, some demonstrators brought signs that used science and math to poke fun at the president (cue the “pi” jokes.)

Here are some of the most pun-tastic signs:

Take a look at all the signs in this video:

Some other signs from the scene:

 Grace Rodley, 13, of Scituate, held a sign as she, scientists, science advocates and community members rallied in Copley Square.
Grace Rodley, 13, of Scituate, held a sign as she, scientists, science advocates and community members rallied in Copley Square. Jessica Rinaldi/Globe Staff/Globe Staff
Matthew Muresan, an electrical engineer from Somerville, wore a gag at the rally.
Matthew Muresan, an electrical engineer from Somerville, wore a gag at the rally. Jessica Rinaldi/Globe Staff
Jessica Rinaldi/Globe Staff
Neuroscientist Shruti Muralidhar, front left, and microbiologist Abhishek Chari, front right, held placards in Copley Square.
Neuroscientist Shruti Muralidhar, front left, and microbiologist Abhishek Chari, front right, held placards in Copley Square. /Steven Senne/Associated Press
Jessica Rinaldi/Globe Staff
Heather Ferris, a Diabetes researcher from Newton, held her daughter, Paige Lester, 4, as they stood in Copley Square.
Heather Ferris, a Diabetes researcher from Newton, held her daughter, Paige Lester, 4, as they stood in Copley Square.Jessica Rinaldi/Globe Staff
Steven Senne/Associated Press
Steven Senne/Associated Press
Jessica Rinaldi/Globe Staff
Jessica Rinaldi/Globe Staff