PhD. Christof Schenck studied biology in Tübingen and Freiburg and holds a doctorate from the University of Munich. He is the author of various books, notably Die Wölfe der Flüsse (1994), Ein Platz für wilde Tiere (2008) and Riesenotter – die letzten ihrer Art (2013). With his wife, Dr. Elke Staib, he lived in Manu National Park for three years, studying and developing a conservation plan for the endangered giant otter. Since 2001, he has been director of the Frankfurt Zoological Society, which leads conservation efforts in 18 countries on four continents.