Understanding Sharks: The Fascinating Behavior of a Threatened Hunter.ByErich Ritter.Malabar (Florida): Krieger Publishing.$59.50. xviii + 259 p; ill.; index. ISBN: 1‐57524‐269‐9. [Originally published asMit Haien Sprechenby Franckh‐Kosmos Verlags‐GmbH, Stuttgart, Germany, 2004.] 2006.