Nice article about one of the Rainforest XPrize semifinalist teams - using drones to sample plant species. 'Nyberg and the National Tropical Botanical Garden (NTBG) team, working with the State of Hawaii's Division of Forestry and Wildlife, have rediscovered three species thought to be extinct or locally extinct from Kauai and uncovered larger populations of many other critically endangered species with populations smaller than 100 individuals.'