Introduction: Man and beast in nature
The essence of the problem: medieval legacies
Gut feelings: anatomy and physiology in the Renaissance
Minds, machines, and bodies: intelligent design in nature?
Of mice and monkeys: the moral relevance of animal pain
The job of physiology: animals in Nineteenth-Century medicine
By accident or design: Darwin's theory of evolution
Darwinism developed: the ontogeny of an idea
The mouse as man writ small: animals in modern medicine
Mice, mazes, and minds: explaining animal behavior
The evolution of consciousness: a question of animal pain
Animals through the looking glass: language and self-consciousness
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