Animals That Can Think

Apsarah
Also photographed at TIGERS, Apsarah is a 4½-year-old female orangutan. Orangutans and bonobos are among the few members of the animal kingdom that are able to recognize themselves in a mirror. "If you put a bracelet on an orangutan and put it in front of a mirror, it doesn't just look at the bracelet," says institute director Bhagavan Antle. "It puts the bracelet up to its face and shakes it. It interacts with its reflection."

• Inside the Minds of Animals