Species Concepts in Biology Historical Development, Theoretical Foundations and Practical Relevance

“Species Concepts in Biology is an efficient and effective book that neatly summarizes several centuries of progress on the species problem. Impressively, it is also a good read.” (Bryan C. Carstens, The Quarterly Review of Biology, Vol. 93 (1), March, 2018)

“Zachos is primarily a biologist rather than a philosopher, and so he has tried to write a book for biologists about a biological topic but with a philosophical flavor. He has certainly succeeded at this. … As biologists, we impose species boundaries and phylogenetic trees onto this fuzziness, and then we write an apparently endless series of books about it. Zachos’ book is one of the better ones, especially as an introduction to the topic … .” (David A. Morrison, Systematic Biology, February, 2017)

“The book … gives an excellent overview on the historical, philosophical and practical aspects of what is usually called ‘the species problem’. It is a book that I fully recommend for everyone dealingwith the species concept, as students, taxonomists or philosophers. … the compact overview presented by Frank Zachos is among the best compilations I read and I fully recommend it to all those who want to learn about species and their own views on it.” (Nikolaus U. Szucsich, Annalen des Naturhistorischen Museums in Wien, Vol. 119, January, 2017)