The B Broadcast: Bees, Beans, Bears, and Butterflies. May 19, 2023, Part 2

Using the largest butterfly tree of life ever created, scientists have determined where the first butterflies originated and which plants they relied on for food.
( Florida Museum photo by Kristen Grace and phylogeny by Hillis, Zwickl, and Gutell )

Hosted by Ira Flatow

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