First published in 2007. Routledge is an imprint of Taylor & Francis, an informa company.

Dr. Heuvelmans, the founder of Cryptozoology, or the science of unknown animals, was an enormously influential explorer and an industrious writer who changed the way in which we perceive natural history, the living world and evolution.

This book, approved by Dr. Heuvelmans before his death in 2001, contains key writings, the majority of which have never been published before, drawn from his work, an overview of the development of Cryptozoology, Dr. Heuvelman's thinking on the subject he invented, from the initial scepticism and even derision from the scientific community to an ultimate...