
audiobook
by Robert G. (Robert Gravem) Webb
A meticulous survey of the mysterious soft‑shelled turtles that glide through North America’s river systems forms the heart of this work. Drawing on field notes collected from the Gulf Coast to the Mississippi basin, the author probes how subtle differences among turtle populations reveal the age and connectivity of the waterways they inhabit. The opening pages set a clear scientific curiosity: do similar forms signal recent contact, and how do aquatic habitats compare to their terrestrial cousins in shaping evolution?
The book then unfolds into a comprehensive guide, offering detailed taxonomic keys, vivid descriptions of each species, and insights into their habits—from hunting techniques to seasonal migrations. Readers also learn about the turtles’ reproductive cycles, growth patterns, and the ecological roles they play within river ecosystems. By linking turtle diversity to the geological history of river drainage, the study provides a fascinating window into both wildlife and the ancient forces that sculpted their homes.
Language
en
Duration
~9 hours (528K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Chris Curnow, Tom Cosmas, Joseph Cooper, page images courtesy of The Internet Archive and the Online Distributed Proofreading Team at http://www.pgdp.net
Release date
2012-06-16
Rights
Public domain in the USA.
Subjects

1927–2018
Best known for his work on the reptiles and amphibians of Mexico and the American Southwest, this longtime University of Texas at El Paso scientist helped shape modern herpetology. His writing is valued for its careful field knowledge, taxonomic detail, and deep sense of place.
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