The world's oldest living things

Rachel Sussman shows photographs of the world's oldest continuously living organisms — from 2,000-year-old brain coral off Tobago's coast to an "underground forest" in South Africa that has lived since before the dawn of agriculture.

Rachel Sussman is on a quest to celebrate the resilience of life by identifying and photographing continuous-living organisms that are 2,000 years or older, all around the world.