Dr. Margaret Winslow is Professor Emeritus of Earth and Atmospheric Science at City College of New York. She was a field geologist for three decades and is the author of two travel memoirs recounting her field experiences in South America. Those titles are "The Cusp of Dreadfulness: Fifteen Seasons in Tierra Del Fuego and Patagonia," and "Over My Head: Journeys in Leaky Boats from the Strait of Magellan to Cape Horn and Beyond." She is most recently the author of the book "Smart Ass: How a Donkey Challenged Me to Accept His True Nature and Rediscover My own" from New World Library. Follow her on Twitter: https://twitter.com/margiewinslow Visit her website: https://www.margiewinslow.com/