When an animal makes a sound, does that sound have meaning? Mike talks to Dr. Joe Hanson, a biology expert and curator/host of It's Okay To Be Smart, and you’ll get a glimpse into the world of animals, sound, and semiotics. -- SOURCES -- The semiome: From genetic to semiotic scaffolding http://philpapers.org/rec/HOFTSF -- Find Joe at -- http://youtube.com/itsokaytobesmart twitter.com/jtotheizzoe twitter.com/okaytobesmart