This is a gem of a book. It is part memoir, part natural history, and part science. It is not often that a first-class physiologist writes a book that can be read profitably by the hobbyist as well as the scientist, but Professor Don Jackson has done that, much in the tradition of, for example, Bernd Heinrich. Anyone reading this book will come away with a better appreciation for the remarkable physiology of turtles, and understand why they have been around for at least 200 million years and may be here long after humans are gone. At the same time, readers will share in the excitement of scientific discovery as Professor Jackson describes a lifetime of experiments performed by him and others. This is scientific writing at its best.

The topics covered are logically sequenced. Chapter one begins with an...

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