We've learned time and again that animals can give diseases to humans. We've seen this happen with coronaviruses, the flu, Ebola -- basically most major disease outbreaks in recent memory. But, of course, the reverse is true too: Humans can give viruses, including the novel coronavirus, to animals. FiveThirtyEight’s senior science writer Maggie Koerth wrote about this on the site earlier this week, and she joined PODCAST-19, FiveThirtyEight’s coronavirus podcast, to discuss her work further.