Research has also determined that chimps may use this skill to their own advantage by intentionally deceiving us, mainly by manipulating whether others can see and hear them.

Scientists have long speculated that these primates are clever and can be sneaky.

The young marmoset began screaming around 5 a.m., when the four people inside the home woke up, smelled smoke and began evacuating the house.

A short time later, the smoke alarms began going off in the house.

Sophie, not at all pleased with being plunged into sudden darkness, screeched out a protest and fought like a demon to rid herself of her covering. Trying to ensure she stayed covered, I was in dire danger of losing the telephone again. In desperation, I said "Look, I'm having trouble with a baby baboon. Can you bring your animal in and I will explain when you get here?"