How and why do trout think? How do they decide where to eat and which food to eat? Why do they refuse to behave as predicted, stumping anglers by rejecting a larger fly for a smaller one or not responding at all to anything in an angler's box? How do trout know to bolt to one particular covered area after being hooked or flushed? Why can trout smell better than humans but not remember as well? Citing the most recent scientific findings in a readily understandable form, Thomas C. Grubb, Jr. addresses these questions and more in The Mind of the Trout. It is the first book to bring together many varied concepts of cognitive ecology as applied to trout and their salmonid relatives: char, salmon, grayling, and whitefish.