Rachel Sussman lives in the past. The Brooklyn, New York-based photographer has spent the past six years chronicling the world's oldest living organisms, from 3,000-year-old lichen in Greenland that grows 1 centimeter every 100 years to 100,000-year-old sea grass in the Spanish Balearic Islands to 500,000-year-old bacteria she snapped under a microscope in a lab in Copenhagen.READ»