Scientists want to track the world's biodiversity using DNA in the air

Amanda Vicente Santos, a bat disease ecologist at the University of Oklahoma, inspects the base of a guanacaste tree in Belize where she intends to trap vampire bats later in the night. Scientists say they

Scientists have found a way to sample DNA out of the air on a large scale — making it possible to one day track the health and well being of all kinds of species around the world.

(Image credit: Luis Echeverría for NPR)