Science of Survival: Treed by a Jaguar

In the summer of 1970, Ed Welch and Bruce Frey put in a canoe at the headwaters of the Amazon and shoved off into the current. Their only plan was to travel downstream until it wasn’t fun anymore. They had a rifle, they had a machete, they had a vague idea of how to survive in the jungle. Then a jaguar chased both of them up a tree.