This hour: popular songs are getting shorter, tropical sand is made of fish poop, and Scramble the weather-predicting duck puts Punxsutawney Phil to shame.

GUESTS: 

• Joe Bennett: Forensic musicologist and a professor at Berklee College of Music in Boston
• Joe Roman: Conservation biologist at the University of Vermont and author of book, “Eat, Poop, Die: How Animals Make Our World” 
• Isaac Torcellini: One of Scramble the Duck’s handlers

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Colin McEnroe and Dylan Reyes contributed to this show.