What's yet to explore? - Nathan Wolfe

We've been to the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation to explore? Biologist and explorer Nathan Wolfe suggests this answer: Almost everything. And we can start, he says, with the world of the unseeably small. Talk by Nathan Wolfe. Learn more about your ad choices. Visit megaphone.fm/adchoices