7. Why do bowerbirds hoard and steal blue stuff?

Aleena and Janine respond to a listener request for an episode about their own scientific research. They're happy to oblige! They kick off with Janine's past research into satin bowerbirds and explain just why males collect, hoard, and steal so much random blue stuff! Meanwhile, Aleena discusses her own peculiar past habit of collecting local bus tickets, and Janine is trying to do a self-portrait - but not the standard kind (the existentialist kind, of course!). Full show notes at Sister Doctor Squared website. Audio mastering, plus intro and outro music, by Dr Adrian Diery