In the second part of this two-part episode, Ben, Noel and special guest Gabe Luzier drill down into the nuts and bolts of flea circuses -- how did they actually work? Is it true that some flea circuses did not, in fact, have fleas? Is there any way to see a real flea circus in the modern day? Tune in to learn more about one of history's strangest novelty performances.

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