A poisonous rattlesnake (响尾蛇) can kill six people. But Jackie Bibby isn’t afraid of the snakes at all. He can spend 45 minutes in a bathtub with 87 rattlesnakes. The snakes crawl (爬行) under his arms and between his legs. None of them bites him. “The key (关键) for me is to stay still (静止的), the snakes won’t bite me,” Bibby says.