Penn & Teller: Bullshit!, also rendered Penn & Teller: B.S.!, Bullsh*t!, Bulls***!, or Bull!, is an American documentary television series that has aired since 2003 on the premium cable channel Showtime. In...
When you get the flu, viruses turn your cells into tiny factories that help spread the disease. In this animation, NPR’s Robert Krulwich and medical animator David Bolinsky explain how a flu virus can trick a...