Out of Print
By: John E Heyning
112 pages, Col photos, bw photos, illus, figs, tabs, maps
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About this book
Accessible introduction to how scientists study cetaceans and what they have learned, showing their interaction with human cultures around the world, and discussing such conservation issues as tuna fishing, habitat degradation, pollution, and the threat of extinction.
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Out of Print
By: John E Heyning
112 pages, Col photos, bw photos, illus, figs, tabs, maps