Imagine you're floating in the middle of the Pacific Ocean on a boat the size of an SUV. You have no working electronics, no food or water, and only a styrofoam box to shade you from the sun. Your only companion is a 22-year-old who has little seafaring experience. How would you survive? On this episode of How To!, we bring on Jonathan Franklin, author of 438 Days, to tell us the incredible story of José Salvador Alvarenga, a shark fisherman who survived at sea for over 14 months. Jonathan says that Alvarenga was a pro at being resourceful—surviving on bird meat, shark livers, and sea turtle blood—but the real key to his survival was mental. For much of his journey, Alvarenga took care of his younger companion, Jonathan says, and it was this caregiving motivation more than anything else that kept Alvarenga alive.

If you liked this episode, check out the first episode in our two-part series: "How To Survive in the Wild Part 1."

Do you have a problem that needs solving? Send us a note at [email protected] or leave us a voicemail at 646-495-4001 and we might have you on the show.

Slate Plus members get bonus segments and ad-free podcast feeds. Sign up now.

Learn more about your ad choices. Visit megaphone.fm/adchoices