In 2010, Gareth Jones and Aaron Chervenak quit their day jobs and split for the Amazon with little more than a portable canoe, paddles, cameras, and camping gear. They paddled for weeks, ate piranha, drank coffee made from river water, set up their hammocks, and drifted off to sleep, or not, to the growl of jaguars. They caught a bug for the region, and two years later they've returned with a bit more of a goal. In early October, the men will set off on a 15-month quest to paddle, hike, and bike from Brazil’s northernmost point to its southernmost point. Here's a bit more on the expedition they've named "Brazil 9000."