Forest canopies are home to countless species of plants, insects, and animals, many of them as yet undiscovered by humans. Canopy botanist Margaret Lowman who calls herself an arbonaut,” has spent twenty years climbing through the trees in forests across the planet. Dr. Lowman talks to host Steve Curwood about her experiences, which are documented in her new book called Life in the Treetops: Adventures of a Woman in Field Biology.