BrainStuff Classics: Why is Bird Poop White?

Bird poop: It’s the bane of cars, statues, and occasional hapless pedestrians across the world. But what is this stuff anyway? Learn about birds' amazingly efficient waste systems (and why their waste is white) in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com