Surrogate and Isolation Rearing 86 
Alterations in Parenting Behavior 87 
References 87 
CHAPTER 9 Ethological Approaches 91 
Passive Observation 91 
Enclosures 92 
Wild-Caught Animals as Research Subjects 92 
References 94 
CHAPTER 10 Teaching with Animals 97 
References 98 
CHAPTER 1 1 Resources for Further Information 99 
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