JHill

Hare has found that dogs are extremely good at finding hidden food in response to human cues, such as gazing or pointing. In his experiments, a researcher showed each dog a piece of food and two cups. Then, while a screen blocked the dog, the researcher would put the food into one of the cups. After removing the screen, the researcher would gesture at the baited container.
Curiously, chimps did not do particularly well in these so-called �object choice tasks.�

How dogs developed smart pet tricks