Fascinating comparisons of behaviour between caged animals and urban dwellers, using multidisciplinary theories. Topics covered are fairly wide but written in concise manner.

Interesting read, but unfortunately does not hold up well scientifically. Morris does not explain how and why humans are comparable to animals; nor does he explain to what extent they are comparable, if they are comparable. While there are many statements of facts throughout the book, Morris fails to explain why they are relevant and what scientific evidence there is to explain that relevance (correlation =/= causation).