Last Sunday, the New York Times Magazine published a fascinating story on the burgeoning field of animal-personality research. The very idea that animals would have personalities challenges our traditional concepts of psychology and the difference between man and beast, of course. But as the writer Charles Siebert argues, studying animal behavior helps us figure out what precisely a personality is, and what it isn’t. What function does a personality serve, anyway? Why do we have one?
Why Did We Evolve Personalities?