Stephanie Yin, from Casey Dunn's Invertebrate Zoology (Biol 0410) course at Brown University, tells the story of a parasitic barnacle with a fascinating lifecycle.

Visit for more stories about the unexpected world of Biology.

The hand-drawn animations were photographed at the Brown University Science Center ( Audio was recorded at the Granoff Center for the Creative Arts (

Music by King Vitamin (, Lino del Vecchio (, and Val (


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