CHIMPS

We knew so little about these secretive creatures back then that everything seemed like a revelation. What were once thought to be peaceful, simple vegetarians turned out to be powerful, highly intelligent hunters with complex personalities and emotions: beings capable of communication, altruism, political alliances, infanticide, warfare, and tool making—the last once thought to distinguish humans from the rest of the animal kingdom.

Unaware of the scientific prejudices of the day, I gave the chimps names and described their rich personalities in human terms, a practice that drew scalding condemnation from some scientists. I readily admit that I was fond of certain chimpanzees. And I believed that having a degree of empathy for my subjects could help me detect slight changes in their mood or attitudes and provide insights into their complex social processes. I think time has proved me right.