567 | The Young and the Restless: The Effects of Testosterone on Song Sparrows
In this week's episode, hosts Ryan Baxter and Mark Ambrogio interview GradCast's own Garth Casbourn, a PhD candidate in Biology. In his research, Garth studies how an animal's internal physiology shapes its behaviour, looking at the influence of testosterone on the song sparrow, a migratory bird. The changes in behaviour that Garth studies are chiefly migration-related, looking at both adult males and juvenile sparrows. Garth is studying two related hypotheses: First, the gonadal hypothesis is the idea that sex hormones, including testosterone, are actually what causes migratory behaviour to…
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