A man, who was lost at sea for over a year, said he survived thanks to imaginary sex and food.
In 2012, José Salvador Alvarenga ventured off on a shark fishing trip in Mexico which unexpectedly turned into a rare tale of survival.
He and a friend Ezequiel Córdoba, who was 22 at the time, were fishing when their boat was battered by a storm, making them lose most of their equipment.
The storm didn't pass for an entire week, pushing them further and further out to sea.
Speaking on the How To! podcast, author of 438 Days Jonathan Franklin said: "The first month, they were eating turtles because they were close to shore and there were lots of sea turtles.
"They would grab the sea turtles, kill them, and then collect the blood and drink glass after glass of the blood, which turns out is extremely healthy and gives you energy. And then they would cook the meat.
"There were also little sharks that would follow them, and if the sharks were small enough, less than maybe two or three feet, Alvarenga would wait until they were next to the boat and grab them by the back fin.
"They would eat the shark livers because it turns out that the shark liver is full of all sorts of oils and nutrition. They just had this crazy diet of turtles and shark liver."