(wybór według Goodreads), daty wydań według books.google.pl): 1991, 2009 – Walking with the Great Apes: Jane Goodall, Dian Fossey, Birute Galdikas 2000, 2001, 2009 – Journey of the Pink Dolphins: An Amazon Quest 2004, 2011 – The Tarantula Scientist (fotograf: Nic Bishop) 2006, 2007, 2008 – The Good Good Pig: The Extraordinary Life of Christopher Hogwood 2006, 2009 – The Quest for the Tree Kangaroo: An Expedition to the Cloud Forest of New Guinea (Scientists in the Field Series, fotograf: Nic Bishop) 2009, 2012 – Saving the Ghost of the Mountain: An Expedition Among Snow Leopards in Mongolia (fotograf: Nic Bishop) 2010 – Kakapo Rescue: Saving the World's Strangest Parrot (fotograf: Nic Bishop) 2010, 2011 – Ptakologia, ang.Birdology: Adventures with a Pack of Hens, a Peck of Pigeons, Cantankerous Crows, Fierce Falcons, Hip Hop Parrots, Baby Hummingbirds, and One Murderously Big Living Dinosaur (polskie wyd. Marginesy, 2018, tłum.