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Big Biology
Ep 40: Songbird Scents
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Ep 40: Songbird Scents

How do hormones like testosterone coordinate important activities in an animal’s life, and how might those activities tradeoff with one another?

How do the microbial communities living on birds affect the scents they give off, and how do those scents influence the birds’ choices of mates?

In this episode, we talk with Ellen Ketterson, an evolutionary biologist at Indiana University, Bloomington, about her work on juncos in North America. We discuss Ellen’s early research on how testosterone modul…

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