Mild-mannered water treatment engineer by day, tarantula obsessive and arachnid guru by night, Martin Nicholas is the real Spiderman. And he's out to find the most amazing spiders in the world. Featured in NATURE's "Deep Jungle," Nicholas travels the world in pursuit of exotic spiders, including the goliath bird-eater of Venezuela and a small South American spider that creates the biggest web in the world - up to 30 feet long