The Subjects (00:31)

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Researchers place a human infant and an infant chimpanzee in the same environment to see how they develop within a six month period.

Final Responses in the "Hand-in-Loop" Problem (01:55)

An adult facilitator places the hands and ankles of the infants in a loop to see how they will respond to the puzzle.

Measuring the Accuracy of Locating a Sound (04:13)

Researchers place a bag over the heads of the infants and take them to an unfamiliar place. The researchers determine the infants do not respond similarly.

Solutions of the "Suspended Cookie" Test (02:53)

Researchers place a cookie on a hook just out of reach of the infants to see how they will respond. Each infant problem solves to get to the treat.

The Hoe or Rake Experiment (04:03)

Researches give the infants a simple tool to determine how they will use it and whether they can get to the candy behind the screen.

Credits: Experiments Upon a Human and a Chimpanzee Infant after 6 Months of Association in the Same Environment (00:03)

Credits: Experiments Upon a Human and a Chimpanzee Infant after 6 Months of Association in the Same Environment