The degree of intelligence with which a variety of animals solve deliberately-posed problems is shown as proof that animals do not act on instinct only.
| Actor | Role |
|---|---|
| JJohn KieranNarrator | Narrator |
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The degree of intelligence with which a variety of animals solve deliberately-posed problems is shown as proof that animals do not act on instinct only.
| Actor | Role |
|---|---|
| JJohn KieranNarrator | Narrator |