marine animals

Book review – Kingdoms, Empires, & Domains: The History of High-Level Biological Classification

10-minute read
keywords: history of science, taxonomy

This is the third of a three four-part series on the history of taxonomy. In the last two reviews, I zoomed in on two important historical figures, Linnaeus and Buffon. Obviously, trying to understand how the living world is organized occupied the minds of many more people, and also has a far deeper pedigree than the 18th century. How deep? How about we take stock of the last 26 centuries. Kingdoms, Empires, & Domains by molecular biologist Mark A. Ragan is an encyclopaedic behemoth that charts the history of our thinking about high-level biological classification. The phrase “animal, vegetable, mineral” might ring a bell, but that division was never universal and there was always a shifting borderland around this, to say nothing of how modern developments have upended our understanding. If that sounds even remotely interesting, buckle up: engaging with this book will be a significant if worthwhile investment. Ragan combines a deeply researched history that draws on primary literature and authoritative translations with a tightly focused and well-structured text. The result is a scholarly monograph that is remarkably engaging. Its massive scope makes it one of those once-in-a-generation books that will be indispensable for science historians and academic libraries.

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Book review – Convergent Evolution on Earth: Lessons for the Search for Extraterrestrial Life

6-minute read

Planet Earth might just as well be called Planet Water. Not only is our planet mostly ocean, life also started out here. Following his 2011 book Convergent Evolution, palaeobiologist George R. McGhee returns to MIT Press and The Vienna Series in Theoretical Biology to expand his examination to oceanic lifeforms, with the tantalising promise of applying the insights gained to astrobiology. I was particularly stoked for this second of a three-part dive into what I consider one of evolutionary biology’s most exciting topics.

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